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English Words with U and Examples in Sentences

Sr. #	Word	Definition	Example Sentence
1	u	The twenty-first (21st) letter of the alphabet. It is a vowel.	"u" comes after "t" and before "v"
2	ubiquitous	If something is ubiquitous
3	ud
4	udder	An udder is an organ of cows and goats that is similar to a bag and produces milk.
5	udders	The plural form of udder; more than one (kind of) udder.
6	Udhampur	Udhampur is a district in the disputed territory of Jammu and Kashmir.
7	UFO	UFO is an abbreviation for unidentified flying object
8	Uganda	Uganda is a country in eastern Africa. Its official name is the Republic of Uganda.
9	Ugandan	Ugandan is the language that people from Uganda speak.
10	uglier	The comparative form of ugly; more ugly.
11	ugliest	The superlative form of ugly; most ugly.
12	ugliness	Ugliness is the state or quality of being ugly.
13	uglinesses	The plural form of ugliness; more than one (kind of) ugliness.
14	ugly	If someone or something is ugly	Hughie had the same ugly face as his father and brother.
15	Uighur
16	Ukraine	Ukraine is a landlocked country in Eastern Europe; the capital city is Kyiv.
17	Ukrainian	If something or someone is Ukrainian	Ukrainian president Volodymyr Zelenskyy met with the United States to talk about an agreement between the 2 countries.
18	Ukrainians	The plural form of Ukrainian; more than one (kind of) Ukrainian.
19	ukulele	A ukulele is a small instrument with strings.	The ukulele looks like the guitar.
20	ukuleles	The plural form of ukulele; more than one (kind of) ukulele.
21	Ulan Bator	Ulan Bator is the capital city of Mongolia.
22	ulcer	An ulcer is a painful area inside your stomach
23	ulcers	The plural form of ulcer; more than one (kind of) ulcer.
24	ultimate	The ultimate goal	You can't have ultimate success without a lot of little successes.; The moon is good, but there's no question that Mars is the ultimate goal.; Presidents have the ultimate responsibility to keep us safe.
25	ultimately	in the end; when nothing else is left	We will all help, but it is you who are ultimately responsible.; The events of 1962 ultimately lead to the end of his government.; Ultimately, the choice depends on what you like.
26	ultra	Ultra or ultra is used to mean "extremely" or "beyond."	The telescope can see ultraviolet light.; He is an ultra-modern artist.; She also creates greens with mixtures of yellows and ultramarine blue.; The company introduced an ultra fast internet service.
27	ultrafast	If something is ultrafast
28	ultrasonic	If something is ultrasonic
29	ultrasound	Ultrasound is the sound with a frequency greater than the upper limit of human hearing.
30	ultrasounds	The plural form of ultrasound; more than one (kind of) ultrasound.
31	ultraviolet	Electromagnetic waves (light) that are ultraviolet are higher in frequency than violet waves. They are outside of the visible spectrum and can't be seen with your eyes.
32	Ulysses	Ulysses is a male given name.
33	um	You use um to show that you are thinking and not ready to speak.	We were prepared, um, in our minds, in our heart, for -- for whatever.; What she did isn't so, um, nice.
34	Umang Lai	An Umang Lai is an ancient Meitei deity of forests and woods.
35	umber	Umber is a brownish-gray color
36	umbers	The plural form of umber; more than one (kind of) umber.
37	Umbilical cord
38	umbra	The fully shaded inner region of a shadow cast by an opaque object.
39	umbrage	To take umbrage is to have a feeling of anger or annoyance caused by something offensive.
40	umbrages	The plural form of umbrage; more than one (kind of) umbrage.
41	umbrella	An umbrella is a tool to keep you dry when it rains. You hold it over your head.	I use my umbrella when it rains.
42	umbrellas	The plural form of umbrella; more than one (kind of) umbrella.
43	Umm
44	Ummah
45	umpire	An umpire is a person who presides over a sports event and enforces its rules.
46	umpired	The past tense and past participle of umpire.
47	umpires	The plural form of umpire; more than one (kind of) umpire.
48	umpiring	The present participle of umpire.
49	umpteen	Umpteen is a large number of something; more than some.	What have you been doing for the last umpteen days?; Umpteen cups of coffee later, we were finished the job.; He's broken umpteen laws and crashed a dozen cars.
50	UN	Short for United Nations.
51	un-	You add "un-" to the front of an adjective or adverb usually to mean the opposite of the original word making an antonym.	You could say, "He is not happy", "He is unhappy", or "He is sad".
52	unable	When sosmeone or something is unable to do something	I am unable to climb that mountain because I am too weak.
53	unacademic	When something is unacademic
54	unaccented	Someone is unaccented if they do not have an accent.	I can understand her better because she is unaccented.
55	unacceptable	If something is unacceptable	Your actions are unacceptable, as such, you are expelled from the school.
56	unacceptably	Not within the limits of what is generally considered to be acceptable; alternatively	The levels of lead in marine hull paints are still unacceptably high.; Your comments are unacceptably provocative.
57	unaccompanied	If a person is unaccompanied	The airline must be notified about unaccompanied children on a flight.
58	unaccountable	If something is unaccountable
59	unachievable	When something is unachievable	Beating his world record seems unachievable.
60	unadapted	Not adapted or used to something.	Man is unadapted to extremely cold climate.
61	unaesthetic	If something is unaesthetic	That picture is unaesthetic.
62	unaffected	If something or someone is unaffected by something	He was unaffected by the change in weather and continued to walk as it started to rain.
63	unaffiliated	If a company is unaffiliated
64	unaffordable	If something is unaffordable	That Porsche car is unaffordable to me.
65	unafraid	If you are unafraid of something	She's unafraid of hard work.
66	unaided	without the help or aid someone or something	The unaided eye cannot see objects smaller than a grain of sand.
67	unalterable	If something is unalterable
68	unaltered	If something is unaltered
69	unamazed	If a person is unamazed by something you did
70	unambiguous	If something is unambiguous
71	unamused	If a person is unamused
72	unanimities	The plural form of unanimity; more than one (kind of) unanimity.
73	unanimity	Unanimity is when something is unanimous.
74	unanimous	If something is unanimous	The vote to pass the bill was unanimous. Every member of the state congress voted to pass it.
75	unanimously	If people vote	The council unanimously voted to reduce the charge.
76	unannounced	If a person comes to your house unannounced
77	unanswerable	An unanswerable question cannot be answered; it does not have a solution.
78	unanswered	If something is unanswered	The call is unanswered.
79	unappreciated	Unappreciated means to not being appreciated	He felt unappreciated when the teacher yelled at him.
80	unapproachable	If someone is unapproachable
81	unarchive	If you unarchive something
82	unarchived	The past tense and past participle of unarchive.
83	unarchives	The third-person singular form of unarchive.
84	unarchiving	The present participle of unarchive.
85	unarguably	If something is called unarguably
86	unarmed	If someone is unarmed
87	unasked	Not asked about.
88	unassessed	Something is unassessed when it hasn't been assessed.	These categories are unassessed
89	unassuming	An unassuming person is modest and quiet in a good way.
90	unassumingly	If something is done unassumingly
91	unattainable	If something is unattainable
92	unattended	If something is unattended
93	unattractive	If something is unattractive
94	unattractively	To do something unattractively is to do it in a ugly (unattractive) way.	He unattractively combed his hair.
95	unauthorised	If a person is unauthorised
96	unauthorized	If a person is unauthorized
97	unavailabilities	The plural form of unavailability; more than one (kind of) unavailability.
98	unavailability	Unavailability is the state when something or someone is not available.
99	unavailable	If something is unavailable	We can't answer the question because the needed information is unavailable at this time.; The manager is unavailable for comment right now.
100	unavoidable	If something is unavoidable
101	unaware	If you are unaware of something	I was totally unaware of that.
102	unawares	If something comes unawares
103	unbaked	If something is unbaked
104	unbalance	If you unbalance a situation or relationship	If the economy gets worse, that would unbalance the budget further.
105	unbalanced	If something is unbalanced
106	unbalances	The plural form of unbalance; more than one (kind of) unbalance.
107	unbalancing	The present participle of unbalance.
108	unbar	When something is unbarred
109	unbarred	The past tense and past participle of unbar.
110	unbarring	The present participle of unbar.
111	unbars	The third-person singular form of unbar.
112	unbearable	A condition which is so extreme that you want to stop experiencing it is unbearable.	The heat was unbearable.; Her sadness was unbearable.
113	unbearably	The adjective unbearably is used to describe something borne in a way that is not bearable.
114	unbeatable	If someone or something is unbeatable
115	unbeaten	If someone is unbeaten
116	unbeknown	If something is unbeknown to somebody	Unbeknown to his wife, he had bought a new car.
117	unbeknownst	If something is unbeknownst to somebody	Unbeknownst to his wife, he had bought a new car.
118	unbelief	Unbelief is when a person lacks a belief.
119	unbeliefs	The plural form of unbelief; more than one (kind of) unbelief.
120	unbelievable	If something is unbelievable	You have an unbelievable number of points!
121	unbelievably	Something done unbelievably means it is done in a way that is not believable.	He tried, unbelievably, to convince her that he was sorry.
122	unbeliever	An unbeliever is a person who doe not believe in something.
123	unbelievers	The plural form of unbeliever; more than one (kind of) unbeliever.
124	unbelieving	If someone is unbelieving
125	unbelievingly	If something is called unbelievingly
126	unbend	If you unbend something
127	unbending	The present participle of unbend.
128	unbends	The third-person singular form of unbend.
129	unbent	The past tense and past participle of unbend.
130	unbiased	An biased person is someone who is not biased.
131	unbind	If you unbind something
132	unbinding	The present participle of unbind.
133	unbinds	The third-person singular form of unbind.
134	unblouse	If you unblouse someone
135	unbloused	The past tense and past participle of unblouse.
136	unblouses	The third-person singular form of unblouse.
137	unblousing	The present participle of unblouse.
138	unbold	If you unbold words
139	unbolded	The past tense and past participle of unbold.
140	unbolding	The present participle of unbold.
141	unbolds	The third-person singular form of unbold.
142	unbolt	If you unbolt a door or window
143	unbolted	The past tense and past participle of unbolt.
144	unbolting	The present participle of unbolt.
145	unbolts	The third-person singular form of unbolt.
146	unborn	If something or someone is unborn	Her unborn child.
147	unbosom	If you unbosom yourself	Jackie unbosomed herself to her diary.
148	unbosomed	The past tense and past participle of unbosom.
149	unbosoming	The present participle of unbosom.
150	unbosoms	The third-person singular form of unbosom.
151	unbottle	Unbottling is removing something from a bottle.
152	unbottled	The past tense and past participle of unbottle.
153	unbottles	The third-person singular form of unbottle.
154	unbottling	The present participle of unbottle.
155	unbound	The past tense and past participle of unbind.
156	unbox	If you unbox something
157	unboxed	The past tense and past participle of unbox.
158	unboxes	The third-person singular form of unbox.
159	unboxing	The present participle of unbox.
160	unbreakable	If something is unbreakable
161	unbridled	If something is unbridled
162	unbroken	If something is unbroken
163	unbuckle	If you unbuckle something	Please, stay in your seat and do not unbuckle your seatbelt.
164	unbuckled	The past tense and past participle of unbuckle.
165	unbuckles	The third-person singular form of unbuckle.
166	unbuckling	The present participle of unbuckle.
167	unbuilt	If something is unbuilt
168	unburied	The past tense and past participle of unbury.
169	unburies	The third-person singular form of unbury.
170	unburnable	If something is unburnable
171	unburnt	If something is unburnt
172	unbury	If you unbind something
173	unburying	The present participle of unbury.
174	unbusinesslike	If something is unbusinesslike
175	unbutton	If you unbutton something
176	unbuttoned	The past tense and past participle of unbutton.
177	unbuttoning	The present participle of unbutton.
178	unbuttons	The third-person singular form of unbutton.
179	uncage	If you uncage something
180	uncaged	The past tense and past participle of uncage.
181	uncages	The third-person singular form of uncage.
182	uncaging	The present participle of uncage.
183	uncannier	The comparative form of uncanny; more uncanny.
184	uncanniest	The superlative form of uncanny; most uncanny.
185	uncanny	If something is uncanny	He bore an uncanny resemblance to the dead sailor.
186	uncap	If you uncap something
187	uncapped	The past tense and past participle of uncap.
188	uncapping	The present participle of uncap.
189	uncaps	The third-person singular form of uncap.
190	uncared	If something is uncared for
191	uncaring	If a person is uncaring
192	uncategorised	If something is uncategorised
193	uncategorized	If something is uncategorized
194	uncaught	If something is uncaught
195	uncensor	If you uncensor something
196	uncensored	The past tense and past participle of uncensor.
197	uncensoring	The present participle of uncensor.
198	uncensors	The third-person singular form of uncensor.
199	uncertain	Uncertain is the opposite of certain. You don't know whether it is going to happen or not. You have doubts about it.	I'm uncertain whether I should go out tonight.
200	uncertainly	If something is done uncertainly
201	uncertainties	The plural form of uncertainty; more than one (kind of) uncertainty.
202	uncertainty	Uncertainty is a state where there is a lack of certainty.
203	unchain	If you unchain something
204	unchained	The past tense and past participle of unchain.
205	unchaining	The present participle of unchain.
206	unchains	The third-person singular form of unchain.
207	unchangeable	If something is unchangeable
208	unchangeables	The plural form of unchangeable; more than one (kind of) unchangeable.
209	unchangeably	In an unchangeable manner.
210	unchanged	If something is unchanged
211	unchanging	If something is unchanging	No matter what, his confidence was unchanging.
212	uncharacteristic	Not characteristic.	That was uncharacteristic of him.
213	uncharacteristically	If something is uncharacteristically large	He was uncharacteristically fidgety, almost as if he was afraid of something.
214	uncharged	If a battery is uncharged	Your computer is uncharged because you forgot to plug it in.
215	unchecked	If something is unchecked
216	unchock	If you unchock a parked aircraft
217	unchocked	The past tense and past participle of unchock.
218	unchocking	The present participle of unchock.
219	unchocks	The third-person singular form of unchock.
220	unchoke	If you unchoke something
221	unchoked	The past tense and past participle of unchoke.
222	unchokes	The third-person singular form of unchoke.
223	unchoking	The present participle of unchoke.
224	unchosen	When something is unchosen
225	uncivil	An uncivil person is someone who is not civilized
226	uncivilised	If a person is uncivilised
227	uncivilized	If a person is uncivilized
228	unclad	An unclad person is someone who is not wearing any clothes
229	unclaimed	If something is unclaimed	All unclaimed items will be thrown away.
230	unclamp	If you unclamp something	After the glue had dried, he unclamped the wood.; The nurse unclamped the tube to allow the liquid to flow.
231	unclamped	The past tense and past participle of unclamp.
232	unclamping	The present participle of unclamp.
233	unclamps	The third-person singular form of unclamp.
234	unclasp	If you unclasp something
235	unclasped	The past tense and past participle of unclasp.
236	unclasping	The present participle of unclasp.
237	unclasps	The third-person singular form of unclasp.
238	uncle	Your uncle is the brother of your mother or father.	My father has a brother, Joe. Joe is my uncle.; My mother's brother, Jim, is another uncle.
239	Uncle Tom	Uncle Tom is a servile black character in a novel by Harriet Beecher Stowe.
240	Uncle Toms	The plural form of Uncle Tom; more than one (kind of) Uncle Tom.
241	unclean	If something is unclean	This scarf is unclean.
242	uncleaner	The comparative form of unclean; more unclean.
243	uncleanest	The superlative form of unclean; most unclean.
244	uncleanliness	Uncleanliness is the state or quality of being unclean.
245	unclear	If something is unclear	The instructions for how to build the machine were unclear.
246	unclearer	The comparative form of unclear; more unclear.
247	unclearest	The superlative form of unclear; most unclear.
248	uncles	The plural form of uncle; more than one (kind of) uncle.
249	unclip	If you unclip something
250	unclipped	The past tense and past participle of unclip.
251	unclipping	The present participle of unclip.
252	unclips	The third-person singular form of unclip.
253	unclog	If you unclog something
254	unclogged	The past tense and past participle of unclog.
255	unclogging	The present participle of unclog.
256	unclogs	The third-person singular form of unclog.
257	unclosed	Something is is unclosed is not closed; it is open.
258	unclothe	If you unclothe
259	unclothed	The past tense and past participle of unclothe.
260	unclothes	The third-person singular form of unclothe.
261	unclothing	The present participle of unclothe.
262	uncoded	Something uncoded is not in code.	The message was uncoded.
263	uncoil	If you uncoil something
264	uncoiled	The past tense and past participle of uncoil.
265	uncoiling	The present participle of uncoil.
266	uncoils	The third-person singular form of uncoil.
267	uncollected	If something is uncollected
268	uncomfortable	If a piece of furniture	The chairs looked so uncomfortable that he didn't sit down.
269	uncommitted	If someone is uncommitted
270	uncommon	If something is uncommon it does not occur or appear very often.	It is uncommon for a divorced couple to forgive one another.; It is uncommon to see an alligator this far north.
271	uncommoner	The comparative form of uncommon; more uncommon.
272	uncommonest	The superlative form of uncommon; most uncommon.
273	uncompetitiveness	Not able to compete
274	uncompleted	If something is uncompleted
275	unconcerned	If a person is unconcerned
276	unconditional	Something that is unconditional is absolute; without conditions or caveats.	My love for you is unconditional.
277	unconditionally	If something is done unconditionally	I will always love you. I love you unconditionally.
278	unconscious	When someone is unconscious	He became unconscious when the robber hit him with a baseball bat from behind.
279	unconstrained	To be unconstrained is to be limitless	When he was in love he felt unconstrained, like he could simply fly to the moon.
280	uncontactable	If someone is uncontactable
281	uncontrollable	If something is uncontrollable	She got an uncontrollable urge to eat chocolate.
282	uncontrolled	If something is uncontrolled
283	unconventional	When something is unconventional	John and Jane had unconventional attitudes about marriage.
284	uncooked	If something is uncooked	This piece of meat is completely uncooked!
285	uncord	If you uncord something
286	uncorded	The past tense and past participle of uncord.
287	uncording	The present participle of uncord.
288	uncords	The third-person singular form of uncord.
289	uncork	If you uncork a bottle of wine
290	uncorked	The past tense and past participle of uncork.
291	uncorking	The present participle of uncork.
292	uncorks	The third-person singular form of uncork.
293	uncorrected	If something is uncorrected
294	uncountable	A word is uncountable if it means something that there is not a set number of. This usually means that it names a substance like water or wood. Uncountable words are sometimes called mass nouns
295	uncounted	Something that is uncounted has not yet been counted.	Uncounted votes do not matter.
296	uncouple	If two or more things are uncoupled	The two railway cars were uncoupled at the train yard.
297	uncoupled	If something is uncoupled
298	uncouples	The third-person singular form of uncouple.
299	uncoupling	The present participle of uncouple.
300	uncouth	If someone is uncouth
301	uncouther	The comparative form of uncouth; more uncouth.
302	uncouthest	The superlative form of uncouth; most uncouth.
303	uncover	If you uncover something	The model railway was uncovered.
304	uncovered	The past tense and past participle of uncover.
305	uncovering	The present participle of uncover.
306	uncovers	The third-person singular form of uncover.
307	uncrate	If you uncrate something
308	uncrated	The past tense and past participle of uncrate.
309	uncrates	The third-person singular form of uncrate.
310	uncrating	The present participle of uncrate.
311	uncredited	A person or their work that is not publicly credited.	A few songs on the album have uncredited vocals.
312	uncrop	If you uncrop an image
313	uncropped	The past tense and past participle of uncrop.
314	uncropping	The present participle of uncrop.
315	uncrops	The third-person singular form of uncrop.
316	uncrown	If you uncrown a monarch
317	uncrowned	The past tense and past participle of uncrown.
318	uncrowning	The present participle of uncrown.
319	uncrowns	The third-person singular form of uncrown.
320	unctuous	If a substance is unctuous
321	uncuff	If you uncuff someone
322	uncuffed	The past tense and past participle of uncuff.
323	uncuffing	The present participle of uncuff.
324	uncuffs	The third-person singular form of uncuff.
325	uncultured	If something or someone is uncultured	The cavemen of the past could be seen as uncultured.
326	uncurl	If you uncurl something
327	uncurled	The past tense and past participle of uncurl.
328	uncurling	The present participle of uncurl.
329	uncurls	The third-person singular form of uncurl.
330	uncut	If something is uncut
331	undamaged	If something is undamaged
332	undated	If a document is undated
333	undead	If someone is undead they are not dead or alive	Ghosts, zombies, and vampires are undead.
334	undecided	If a person is undecided	The question of man's destiny is still undecided.
335	undecillion	ordinal undecillionth) The number 1
336	undecillions	The plural form of undecillion; more than one (kind of) undecillion.
337	undeclared	If something is undeclared
338	undecorated	An undecorated room has no decorations applied to it.
339	undefeatable	An undefeatable person is someone who is impossible to defeat.
340	undefeated	An undefeated person is someone who has not been defeated; always victorious.
341	undefinable	If something is undefinable
342	undefined	If something is undefined
343	undelivered	Not delivered.
344	undemocraticness	Undemocraticness is the quality of not being democratic.
345	undeniable	If something is undeniable
346	undented	If something is undented
347	under	In the same place as another thing	They ate under the trees.
348	under-	You add under- to the beginning of verbs and adjectives to indicate too little of it.	understaff
349	under arrest
350	Under foot
351	under the weather	If a person is under the weather
352	underachieve	If a person underachieves
353	underachieved	The past tense and past participle of underachieve.
354	underachiever	An underachiever is a person who performs less well than what is expected of them.
355	underachievers	The plural form of underachiever; more than one (kind of) underachiever.
356	underachieves	The third-person singular form of underachieve.
357	underachieving	The present participle of underachieve.
358	underarm	An underarm is the area underneath the shoulder
359	underarms	The plural form of underarm; more than one (kind of) underarm.
360	underboob	The underboob of a woman is the view of her breast that is seen from the side.
361	underboobs	The plural form of underboob; more than one (kind of) underboob.
362	underclothing	Underclothing is clothing that people wear hidden under other clothing even when they're indoors. Underpants	Wash your underclothing in hot water. Synonym: underwear
363	undercooked	Undercooked describes food that is not heated fully	The chicken was undercooked.
364	undercover	An action or person is undercover if it is hidden or secret: the people doing it don't want other people to know about it.	We're planning an undercover operation to try to catch those people.
365	undercut	An undercut is a cut made in the lower part of something.
366	undercuts	The plural form of undercut; more than one (kind of) undercut.
367	undercutting	The present participle of undercut.
368	underestimate	When you underestimate something	Do not underestimate our new colleague, he used to be under the President's scholarship to study overseas.
369	underestimated	The past tense and past participle of underestimate.
370	underestimates	The third-person singular form of underestimate.
371	underestimating	The present participle of underestimate.
372	underfoot	under your feet; on the ground	The snow underfoot crunched as we walked.
373	undergo	If you undergo something	The country has undergone great changes in the last decade.; She had to undergo surgery because of her broken leg.; The bridge is currently undergoing tests to see if it can be reopened.
374	undergoes	The third-person singular form of undergo.
375	undergoing	The present participle of undergo.
376	undergone	The past participle of undergo.
377	undergraduate	An undergraduate is a student at a university who has not yet received a degree.
378	undergraduates	The plural form of undergraduate; more than one (kind of) undergraduate.
379	underground	of or about being under the ground	Underground water is drying up.
380	undergrounds	The plural form of underground; more than one (kind of) underground.
381	undergrowth	Undergrowth is smaller plants growing in a forest: bushes	She couldn't walk very fast in this forest, because she had to push through the undergrowth.
382	underlain	The past participle of underlie.
383	underlay	The past tense of underlie.
384	underlie	If x underlies y	Poor education underlies much of the crime and violence in our society.
385	underlies	The third-person singular form of underlie.
386	underline	If you underline something	You should underline that.
387	underlined	The past tense and past participle of underline.
388	underlines	The third-person singular form of underline.
389	underling	Your underling is a person who is of lower status or authority than you.
390	underlings	The plural form of underling; more than one (kind of) underling.
391	underlining	The present participle of underline.
392	underlying	The present participle of underlie.
393	undermine	Someone or something undermines something when they make it difficult for it to happen.	When you yell at people, it undermines our attempt to get these people to be friendly with each other.
394	undermined	The past tense and past participle of undermine.
395	undermines	The third-person singular form of undermine.
396	undermining	The present participle of undermine.
397	underneath	If x is underneath y	The cat was hiding underneath the car.; My bag was underneath my jacket.
398	underpack	If you underpack
399	underpacked	The past tense and past participle of underpack.
400	underpacking	The present participle of underpack.
401	underpacks	The third-person singular form of underpack.
402	underpaid	The past tense and past participle of underpay.
403	underpants	Underpants are clothes which you wear under your trousers or skirt.	Brad took off his underpants.
404	underpass	An underpass is a passage that crosses a road
405	underpasses	The plural form of underpass; more than one (kind of) underpass.
406	underpay	If you underpay someone
407	underpaying	The present participle of underpay.
408	underpays	The third-person singular form of underpay.
409	underscore	An underline that goes under text is called an underscore	Bob put an underscore under his title to make it stand out.
410	underscores	The plural form of underscore; more than one (kind of) underscore.
411	undersell	If you undersell something
412	underselling	The present participle of undersell.
413	undersells	The third-person singular form of undersell.
414	underside	The side of something that faces downward.	The oil pan is on the underside of a car.
415	undersides	The plural form of underside; more than one (kind of) underside.
416	undersized	Something that is undersized is too small.
417	undersold	The past tense and past participle of undersell.
418	understaff	If you understaff a shop
419	understaffed	The past tense and past participle of understaff.
420	understaffing	The present participle of understaff.
421	understaffs	The third-person singular form of understaff.
422	understand	To hear and then fully know what was said	He understood what I said to him.; She didn't understand. She thought I meant the meeting was today.
423	understandabilities	The plural form of understandability; more than one (kind of) understandability.
424	understandability	The understandability of something
425	understandable	If something is understandable
426	understandably	If something happens understandably
427	understanding	A person's understanding of something is what they know or think about it.	Science helps us to gain a better understanding of natural processes.
428	understandings	The plural form of understanding; more than one (kind of) understanding.
429	understands	The third-person singular form of understand.
430	understate	If you understate something
431	understated	The past tense and past participle of understate.
432	understatement	An understatement is a description that makes something out to be less important than it actually is.
433	understates	The third-person singular form of understate.
434	understating	The present participle of understate.
435	understeer	If you understeer your vehicle
436	understeered	The past tense and past participle of understeer.
437	understeering	The present participle of understeer.
438	understeers	The third-person singular form of understeer.
439	understood	The past tense and past participle of understand.
440	Understrapper
441	understudied	The past tense and past participle of understudy.
442	understudies	The plural form of understudy; more than one (kind of) understudy.
443	understudy	An understudy is a person who understudies.
444	understudying	The present participle of understudy.
445	undersupply
446	undertake	If you undertake something	He is in charge of this project and has undertaken this work largely single-handed since July.; After a common two years, some students undertake industrial or professional placement in their third year.; Britain has apparently undertaken to review its own aid to Vietnam.
447	undertaken	The past participle of undertake.
448	undertaker	An undertaker is a person whose business is preparing dead bodies for burial or cremation and making arrangements for funerals.
449	undertakers	The plural form of undertaker; more than one (kind of) undertaker.
450	undertakes	The third-person singular form of undertake.
451	undertaking	The work of an undertaker; the management of funerals.
452	undertakings	The plural form of undertaking; more than one (kind of) undertaking.
453	undertook	The past tense of undertake.
454	undervalued	Something that is undervalued is valued too little.
455	underwater	If something is underwater
456	underway	If something is underway	The boy has been missing since this morning, and a search is currently underway.
457	underwear	Underwear is a piece of clothing that you wear under your clothes next to your skin.	I got out of the shower, dried myself, and put on some underwear.
458	underwent	The past tense of undergo.
459	undesirable	If something is undesirable
460	undetermined	If something is undetermined
461	undid	The simple past of undo.
462	Undifferentiated
463	undiluted	If something is undiluted
464	undisclosed	When something is undisclosed	The two parties had an out-of-court settlement for an undisclosed amount of money.
465	undiscussed	If a topic is undiscussed
466	undisputed	Not disputed.
467	undisturbed	If something is undisturbed
468	undo	If you undo an action	We can undo the damage to the system.
469	undocumented	If something is undocumented
470	undoes	The third-person singular form of undo.
471	undoing	Somebody's undoing is the thing that causes them major problems	He left behind a laptop computer loaded with details that would prove to be his undoing.
472	undoings	The plural form of undoing; more than one (kind of) undoing.
473	undone	The past participle of undo.
474	undoubted	If something is undoubted
475	undoubtedly	If something is undoubtedly clear
476	undress	If you undress
477	undressed	The past tense and past participle of undress.
478	undresses	The third-person singular form of undress.
479	undressing	The present participle of undress.
480	undue	If something is undue
481	undulate	If something undulates
482	undulated	The past tense and past participle of undulate.
483	undulates	The third-person singular form of undulate.
484	undulating	The present participle of undulate.
485	undying	If something is undying
486	unearth	To drive or take something out of the ground or soil; to uncover or find; to bring to light; to disclose	to unearth a secret
487	unearthed	The past tense and past participle of unearth.
488	unearthing	The present participle of unearth.
489	unearths	The third-person singular form of unearth.
490	unease	Unease is the feeling of being anxious or discontented.
491	uneasier	The comparative form of uneasy; more uneasy.
492	uneasiest	The superlative form of uneasy; most uneasy.
493	uneasiness	Someone's uneasiness is how uneasy they are.	His uneasiness grew as he watched them argue.
494	uneasy	When something is uneasy	As a girl, I feel very uneasy when I walk back home late at night.
495	uneaten	Something that is uneaten has not been eaten; something can be completely uneaten or it can be partially uneaten.
496	uneducated	If a person is uneducated
497	unelected	If someone is unelected
498	unemployable	Someone who is unemployable is not fit for working anywhere; they cannot be employed.	His chronic illness made him unemployable.
499	unemployed	If someone is unemployed
500	unemployment	Unemployment is the state of having no job.
501	unemployments	The plural form of unemployment; more than one (kind of) unemployment.
502	unencumbered	An unencumbered person is someone who does not have worries or responsibilities
503	unentertaining	If something is unentertaining
504	unequal	If two things are unequal	Unequal money for schools leads to unequal education.
505	unethical	If something is unethical
506	uneven	If something is uneven	The uneven gravel road was paved with asphalt.; A miscommunication resulted in an uneven distribution of rations.
507	unevenly	If something is done unevenly
508	uneventful	If something is uneventful
509	unexpected	When something is unexpected	Lisa's surprise visit was unexpected and I was not prepared for it.
510	unexpectedly	If something happened unexpectedly
511	unexplainable	If something is unexplainable
512	unexplained	If something is unexplained
513	unexploitable	If something is unexploitable
514	unexposed	Something that is unexposed is covered; it is not exposed.
515	unfair	If something is unfair	It was unfair for the boss to give larger bonuses to his friends.
516	unfairly	If something is done unfairly
517	unfairness	The unfairness of something is how unfair it is.
518	unfaithful	An unfaithful person is someone who is not loyal or faithful.
519	unfaithfulness	The unfaithfulness of someone is how unfaithful they are.
520	unfamiliar	If something is unfamiliar to you
521	unfamous	Not famous; not well-known about; obscure.
522	unfashionable	An unfashionable person is someone who is not fashionable
523	unfasten	If you unfasten something
524	unfastened	The past tense and past participle of unfasten.
525	unfastening	The present participle of unfasten.
526	unfastens	The third-person singular form of unfasten.
527	unfavorable	If A is unfavorable towards B
528	unfavourable	If A is unfavourable towards B
529	unfelicitous
530	unfeminine	If something is unfemininine
531	unfence	If you unfence a place
532	unfenced	The past tense and past participle of unfence.
533	unfences	The third-person singular form of unfence.
534	unfencing	The present participle of unfence.
535	unfilled	If something is filled
536	unfinished	If something is unfinished
537	unfit	If someone or something is unfit for a role or purpose	Jack cannot run, making him unfit for the track team.
538	unfitter	The comparative form of unfit; more unfit.
539	unfittest	The superlative form of unfit; most unfit.
540	unflavored	If something is unflavored
541	unflavoured	If something is unflavoured
542	unfold	If you unfold something	I took the origami and unfolded it into a flat sheet of paper.
543	unfolded	The past tense and past participle of unfold.
544	unfolding	The present participle of unfold.
545	unfolds	The third-person singular form of unfold.
546	unforgettable	If something is unforgettable
547	unformed	When something is unformed
548	unfortunate	When something (usually an event) is unfortunate	It is unfortunate that the Prince was murdered.
549	unfortunately	You use unfortunately to show that you feel something is not the way you wish it was.	Unfortunately, we didn't win.; I don't have any more money, unfortunately.
550	unfreeze	If you unfreeze something
551	unfreezes	The third-person singular form of unfreeze.
552	unfreezing	The present participle of unfreeze.
553	unfresh	If something is unfresh
554	unfriend	One who is not a friend; an enemy.
555	unfriendlier	The comparative form of unfriendly; more unfriendly.
556	unfriendlies	The plural form of unfriendly; more than one (kind of) unfriendly.
557	unfriendliest	The superlative form of unfriendly; most unfriendly.
558	unfriendly	When someone is unfriendly	I do not understand why Luke is being so unfriendly today.
559	unfroze	The past tense of unfreeze.
560	unfrozen	The past participle of unfreeze.
561	unfunny	If something is unfunny
562	unfurl	If you unfurl something
563	unfurled	The past tense and past participle of unfurl.
564	unfurling	The present participle of unfurl.
565	unfurls	The third-person singular form of unfurl.
566	unglazed	If something is unglazed
567	unglove	If you unglove someone's hands	I ungloved her hands took them in mind.
568	ungloved	Ungloved hands do not have gloves on them.	I held the snow in my ungloved hands and felt the cold.
569	ungloves	The third-person singular form of unglove.
570	ungloving	The present participle of unglove.
571	ungraceful	If a person is ungraceful
572	ungrateful	An ungrateful person is someone who is not grateful.
573	ungratefulness	The ungratefulness of someone is how ungrateful they are.
574	unguent	An unguent is a medicinal cream that is applied to the skin for therapeutic purposes.
575	unguents	The plural form of unguent; more than one (kind of) unguent.
576	unhappier	The comparative form of unhappy; more unhappy.
577	unhappiest	The superlative form of unhappy; most unhappy.
578	unhappily	If something is done unhappily	Charles unhappily did his homework, which he did not like too much.
579	unhappiness	Unhappiness is a feeling of not being happy.	After the leader of our country died, many people had feelings of unhappiness.
580	unhappy	If someone is unhappy	There are many unhappy people in the hospital.
581	unharmed	If a person is unharmed
582	unharness	If you unharness a horse
583	unharnessed	The past tense and past participle of unharness.
584	unharnesses	The third-person singular form of unharness.
585	unharnessing	The present participle of unharness.
586	unhealthier	The comparative form of unhealthy; more unhealthy.
587	unhealthiest	The superlative form of unhealthy; most unhealthy.
588	unhealthy	If something is unhealthy
589	unheard	If something that someone said is unheard
590	unhelpful	If something is unhelpful	Most of his contributions are unhelpful.
591	unholster	If you unholster a weapon
592	unholstered	The past tense and past participle of unholster.
593	unholstering	The present participle of unholster.
594	unholsters	The third-person singular form of unholster.
595	unhook	If you unhook something
596	unhooked	The past tense and past participle of unhook.
597	unhooking	The present participle of unhook.
598	unhooks	The third-person singular form of unhook.
599	unhyphenated	A word or phrase that is unhyphenated doesn't have any hyphens in it.
600	unicorn	A unicorn is a mythical beast which looks like a horse or deer with a spiraled horn projecting from its forehead.	The Lion and The Unicorn were Fighting for The Crown.
601	unicorns	The plural form of unicorn; more than one (kind of) unicorn.
602	unicycle	A unicycle is a vehicle with one wheel that a person rides by pedaling.
603	unicycles	The plural form of unicycle; more than one (kind of) unicycle.
604	unidentifiable	If something is unidentifiable
605	unidentified	If something is unidentified
606	unification	Unification is when things come together or join each other to become one.	The unification of East Germany and West Germany happened in 1990.
607	unifications	The plural form of unification; more than one (kind of) unification.
608	unified	The past tense and past participle of unify.
609	unifies	The third-person singular form of unify.
610	uniform	A uniform is clothing that is very similar and worn by a group of people.	All the young army men wore identical uniforms and badges of rank.; School uniform was always worn, which for the boys meant khaki shirts and trousers.; When I was a child, I was afraid of men in uniform: policemen, firemen, even the milkman.
611	uniformly	If something is done uniformly
612	uniforms	The plural form of uniform; more than one (kind of) uniform.
613	unify	If you unify something or a group of things	When she explained it, all the different pieces of information and ideas came together for me in a unified whole.; There are many cultural, ethnic, historical, and geographical reasons why Ireland should be unified politically.; Music serves to identify and unify members of the group.
614	unifying	The present participle of unify.
615	unimaginable	If something is unimaginable
616	unimpeachable	If something is unimpeachable
617	unimportant	Something unimportant is not important	He had to know the starting time, but the other details were unimportant.
618	unimpressive	If something is unimpressive
619	uninhabited	An uninhabited place has no one living in it.
620	uninstall	If you uninstall something
621	uninstalled	The past tense and past participle of uninstall.
622	uninstalling	The present participle of uninstall.
623	uninstalls	The third-person singular form of uninstall.
624	unintelligent	An unintelligent person is someone who is not intelligent.
625	unintentional	If something is unintentional	I'm terribly sorry about the mistake with your name. It was completely unintentional.
626	unintentionally	If something is done unintentionally
627	uninteresting	The opposite of interesting.
628	unintuitive	If something is unintuitive
629	union	A union is when many things are joined together.	The League of Nations was a union between many nations.
630	Union of South Africa	The Union of South Africa was a commonwealth dominion in South Africa from 1910 to 1961
631	Union of Soviet Socialist Republics	The Union of Soviet Socialist Republics was a confederation of 15 countries called republics in Europe and Asia	In 1936, a new constitution was made by the Union of Soviet Socialist Republics.
632	Union Territory
633	unionise	If you unionise workers
634	unionised	The past tense and past participle of unionise.
635	unionises	The third-person singular form of unionise.
636	unionising	The present participle of unionise.
637	unionize	If you unionize workers
638	unionized	The past tense and past participle of unionize.
639	unionizes	The third-person singular form of unionize.
640	unionizing	The present participle of unionize.
641	unions	The plural form of union; more than one (kind of) union.
642	unique	If something is unique	When the school for the deaf opened, it was unique in Europe.; Of course, the problem is not unique to this country.
643	uniquely	Something done uniquely is done in a way that is unique.
644	uniqueness	The state or quality of being unique or one-of-a-kind.
645	uniquenesses	The plural form of uniqueness; more than one (kind of) uniqueness.
646	unisex	If something is unisex	Charlie is a unisex name, because both boys and girls can be named Charlie.; A unisex bathroom is a bathroom that anybody can use, no matter what gender they are.
647	unison	If two things happen in unison
648	unit	One of a measure of something; the amount of something that is counted as "one".	Measure five units to the left.; $4 is the unit price.; A pound is a useful unit for thinking about amounts of butter.
649	unite	If two or more things unite	We united to form a common cause against our enemy.
650	united	I some things (two or more) are united they are together. These act as one thing. This is often used for people of groups of people.	We are united in our goals.; John as Sue were united in holy matrimony (marriage) last week.; We stand united against our enemies.
651	United Arab Emirates	The United Arab Emirates (UAE) is a country in Asia.	Abu Dhabi is the capital city of the United Arab Emirates.
652	United Kingdom	The United Kingdom is a country of northern Europe located in a group of islands	I live in the United Kingdom.
653	United Nations	United Nations is an international organization. Acronym UN for United Nations or UNO for United Nations organization.
654	United States	Short for United States of America.
655	United States of America	The United States of America is a country in North America that shares borders with Canada and Mexico.	There are 50 states in the United States of America.
656	unites	The third-person singular form of unite.
657	unities	The plural form of unity; more than one (kind of) unity.
658	uniting	The present participle of unite.
659	units	The plural form of unit; more than one (kind of) unit.	"Mile", "degree", "gram" and "liter" are all units of measurement.
660	unity	Unity is being one	Our strength lies in our unity.
661	universal	If something is universal	The laws of physics are universal.; Universal human rights must be supported by every country.
662	universalities	The plural form of universality; more than one (kind of) universality.
663	universality	Universality is the quality of being universal.
664	universally	If something applies universally	It is universally accepted that this problem has no clear solution.
665	universe	The universe is the whole space we live in and everything it contains: our Milky Way and billions of other galaxies that are not all known are part of our universe.	According to recent theories, our universe would be bent on itself, being finite but having no frontiers.
666	universes	The plural form of universe; more than one (kind of) universe.
667	universities	The plural form of university; more than one (kind of) university.
668	university	A university is a school of advanced study that offers both undergraduate and graduate classes.	A doctor studies for many years at a university before going to work in a hospital.
669	Unix
670	unjack	If you unjack something
671	unjacked	The past tense and past participle of unjack.
672	unjacking	The present participle of unjack.
673	unjacks	The third-person singular form of unjack.
674	unjust	If something is unjust	The king's law is unjust.
675	unjustified	If something is unjustified
676	unjustly	If something is done unjustly
677	unkempt	If a person is unkempt
678	unkind	When someone is unkind	Why did Carl throw pizza at my face? The guy is so unkind.; That person saw me drowning out at sea, yet he chose to stand there and laugh at me. He is so unkind!
679	unkinder	The comparative form of unkind; more unkind.
680	unkindest	The superlative form of unkind; most unkind.
681	unkindly	When someone does something unkindly
682	unknot	If you unknot a knot
683	unknots	The third-person singular form of unknot.
684	unknotted	The past tense and past participle of unknot.
685	unknotting	The present participle of unknot.
686	unknown	If something is unknown	Nothing was written down, and it was a long time ago, so his true date of birth is unknown.
687	unlawful	If an act is unlawful	He was charged with unlawful use of a car.
688	unleash	If you unleash an animal
689	unleashed	The past tense and past participle of unleash.
690	unleashes	The third-person singular form of unleash.
691	unleashing	The present participle of unleash.
692	unless	If you say that x is true unless y	I'll be there at 8:30 unless the train is late.; Unless you help, we won't finish on time.
693	unlicensed	An unlicensed person is someone who is not licensed to do something.
694	unlike	not the same as; different from.	This is unlike anything I have ever done before.; Unlike mine, my mother's eyes are green.
695	unlikelier	The comparative form of unlikely; more unlikely.
696	unlikeliest	The superlative form of unlikely; most unlikely.
697	unlikely	If something is unlikely	It's unlikely that it will rain today.
698	unlimited	When something is unlimited	The seemingly unlimited number of people got out of the mall.; He was so rich it seemed like his money was unlimited.
699	unlist	If you unlist something
700	unlisted	The past tense and past participle of unlist.
701	unlisting	The present participle of unlist.
702	unlists	The third-person singular form of unlist.
703	unload	If you unload something	The workers began to unload the ship as soon as the cargo hold opened.
704	unloaded	The past tense and past participle of unload.
705	unloading	The present participle of unload.
706	unloads	The third-person singular form of unload.
707	unlock	You unlock a door with a key when you want to enter.	David left his house keys at work, so his housemate had to unlock the door for him.
708	unlocked	Not locked
709	unlocking	The present participle of unlock.
710	unlocks	The third-person singular form of unlock.
711	unluckier	The comparative form of unlucky; more unlucky.
712	unluckiest	The superlative form of unlucky; most unlucky.
713	unlucky	An unlucky person is someone who has bad luck.
714	unmaintained	If something is unmaintained	This ship is unmaintained.
715	unmanned	If a place is unmanned
716	unmark	If you unmark something
717	unmarked	The past tense and past participle of unmark.
718	unknowingly
719	unmarking	The present participle of unmark.
720	unmarks	The third-person singular form of unmark.
721	unmarried	If your are unmarried
722	unmask	If you unmask someone
723	unmasked	The past tense and past participle of unmask.
724	unmasking	The present participle of unmask.
725	unmasks	The third-person singular form of unmask.
726	unmerge	If you unmerge something
727	unmerged	The past tense and past participle of unmerge.
728	unmerges	The third-person singular form of unmerge.
729	unmerging	The present participle of unmerge.
730	unmixable	If two or more liquids are unmixable
731	unmixed	If something is unmixed
732	unnamed	If something is unnamed
733	unnatural	If something is unnatural
734	unnecessarily	If something is done unnecessarily
735	unnecessary	If something is unnecessary	Do not add unnecessary words to your comprehension answers.
736	unnoticed	If something goes unnoticed
737	unobtainable	If something is unobtainable
738	unobtainium	Unobtainium is a fictional material that has extraordinary properties and is considered very difficult	Science-fiction works have a lot of devices that could not even exist if they were not made of unobtainium!
739	unoccupied	If something is unoccupied	The tenant left, making the house unoccupied.
740	unofficial	Something that is unofficial is not approved by some authority.	The voting results are unofficial because they have not been approved by the committee yet.
741	unopened	An unopened object can be opened but it has not been opened.	I was holding the unopened can of tuna while looking for a can-opener.
742	unopposed	If something is done unopposed
743	unoptional	If something is unoptional	Death is unoptional.
744	Unordered
745	unorganised	If something is unorganised
746	unorganized	If something is unorganized
747	unoxidised	Unoxidised is another way of spelling unoxidized.
748	unoxidized	If something is unoxidized
749	unpack	To unpack something means to remove items from a package or container	The first thing you should do once you arrive home from camping is to unpack your bags.
750	unpacked	The past tense and past participle of unpack.
751	unpacking	The present participle of unpack.
752	unpacks	The third-person singular form of unpack.
753	unpaid	If something is unpaid
754	unpaved	If something is unpaved	The workers started to build the road, but it is still unpaved.
755	unpin	If you unpin something
756	unpinned	The past tense and past participle of unpin.
757	unpinning	The present participle of unpin.
758	unpins	The third-person singular form of unpin.
759	unplanned	If something that has happened was unplanned	The change in tactics used to rob the bank was unplanned.
760	unpleasant	Something unpleasant is nasty	The coffee tasted unpleasant as if the milk had gone bad.
761	unpleasantness	The unpleasantness of something is how unpleasant it is.
762	unplug	If you unplug an appliance
763	unplugged	The past tense and past participle of unplug.
764	unplugging	The present participle of unplug.
765	unplugs	The third-person singular form of unplug.
766	unpopular	Not popular
767	unprecedented	If something is unprecedented
768	unpredictable	If something is unpredictable
769	unprejudiced	A person who is unprejudiced does not have a prejudice.
770	unprepared	An unprepared person is someone who has not prepared for something.
771	unprepossessing	If something is unprepossessing
772	unprincipled	If you are unprincipled	A murder is unprincipled, and conscienceless.
773	unprocessed	If something is unprocessed
774	unprofitable	If a business is unprofitable
775	unpropitious	Not propitious; unfavourable
776	unproven	If something is unproven
777	unpublished	If something is unpublished
778	unqualified	If a person is unqualified	His lack of a high school diploma renders him unqualified for the job.
779	unquestionable	If something is unquestionable
780	unquiet	If a person is unquiet
781	unquieter	The comparative form of unquiet; more unquiet.
782	unquietest	The superlative form of unquiet; most unquiet.
783	Unradiated
784	unread	If something is unread
785	unreal	If something is unreal
786	unrealised	If something is unrealised	The cure for cancer is still unrealised.
787	unrealistic	If something is unrealistic
788	unrealized	If something is unrealized
789	unreasonable	If a situation is unreasonable	It's unreasonable to ask us all to change our plans at the last minute.; That meeting took an unreasonable amount of time.
790	unreasonableness	The unreasonableness of someone is how unreasonable that person is.
791	unrecognisable	If something or someone is unrecoginisable
792	unrecognised	Something that is unrecognised has not been recognised.
793	unrecognizable	If something or someone is unrecognizable
794	unrecognized	Something that is unrecognized has not been recognized.
795	unrecyclable	If something is called unrecyclable
796	unrecyclables	The plural form of unrecyclable; more than one (kind of) unrecyclable.
797	unrecycled	If something is unrecycled
798	unredact	If you unredact a document
799	unredacted	The past tense and past participle of unredact.
800	unredacting	The present participle of unredact.
801	unredacts	The third-person singular form of unredact.
802	unreel	If you unreel something
803	unreeled	The past tense and past participle of unreel.
804	unreeling	The present participle of unreel.
805	unreels	The third-person singular form of unreel.
806	unrefined	If something is unrefined
807	unreformed	If something is unreformed it means that it has not changed or improved.
808	unregulated	Not regulated	"It is not regulation that is an evil, but unsuitable regulation; unregulated trade is not necessarily in a sound condition, and regulated trade is not restricted trade unless it is ill-regulated trade." -- William Cunningham in The Growth of English Industry and Commerce, p. 265 (1896)
809	unrelated	If A and B are unrelated
810	unreliable	When something or someone is unreliable	He is an unreliable source of this murder case as he is a good friend of the suspect and would then try to defend him.
811	unremarkable	If something is unremarkable
812	unrepaid	If something is unrepaid
813	unrepairable	If something is unrepairable
814	unrequited love	Unrequited love is love that is not reciprocated
815	unresolved	If a problem is unresolved
816	unresponsive	If a person is unresponsive
817	unrest	A state of trouble
818	unrestrained	If something is unrestrained
819	unrestricted	If something is unrestricted
820	unrests	The plural form of unrest; more than one (kind of) unrest.
821	unripe	If something is unripe	The grapes didn't taste nice because they were unripe.
822	unripened	When something is unripened
823	unrivaled	If a person is unrivaled	After winning three years in a row, he was the unrivaled champion.
824	unrivalled	If a person is unrivalled	After winning three years in a row, he was the unrivalled champion.
825	unroll	If you unroll
826	unrolled	The past tense and past participle of unroll.
827	unrolling	The present participle of unroll.
828	unrolls	The third-person singular form of unroll.
829	unsafe	If something is unsafe
830	unsaid	Something that was unsaid wasn't said; it wasn't spoken
831	unsalted	If something is unsalted
832	unsatisfactory	If something is unsatisfactory	The team's results have been highly unsatisfactory, so the coach was fired.; The new system was removed after it proved to be unsatisfactory.
833	unsaturated	Not saturated; able to dissolve more of a solute at the same temperature.
834	unsaved	Something that was left unsaved was not saved.
835	unsawn	If something is unsawn
836	unsay	To unsay something is to make it so that it was never said. This isn't possible in real life	I wish I could unsay the insults I said to you last night.
837	unsaying	The present participle of unsay.
838	unsays	The third-person singular form of unsay.
839	unscramble	If you unscramble something
840	unscrambled	The past tense and past participle of unscramble.
841	unscrambles	The third-person singular form of unscramble.
842	unscrambling	The present participle of unscramble.
843	unscrew	If you unscrew a screw
844	unscrewed	The past tense and past participle of unscrew.
845	unscrewing	The present participle of unscrew.
846	unscrews	The third-person singular form of unscrew.
847	unscrupulous	If a person is unscrupulous
848	unseal	If you unseal something
849	unsealed	The past tense and past participle of unseal.
850	unsealing	The present participle of unseal.
851	unseals	The third-person singular form of unseal.
852	unsecured	If something is unsecured
853	unseen	If something is unseen	He entered a dark room where many objects remained unseen.; Much of the damage was unseen until it was inspected later.
854	unsent	Not sent.
855	unserviceable	Something that is no longer usable
856	unsettle	If you unsettle a person
857	unsettled	The past tense and past participle of unsettle.
858	unsettles	The third-person singular form of unsettle.
859	unsettling	The present participle of unsettle.
860	unshackle	If you unshackle a person
861	unshackled	The past tense and past participle of unshackle.
862	unshackles	The third-person singular form of unshackle.
863	unshackling	The present participle of unshackle.
864	unshared	Something unshared hasn't been shared.
865	unsharpened	If a knife
866	unsightly	If something is unsightly
867	unsigned	If something is unsigned	The comment was unsigned.
868	unskilled	An unskilled person is someone who do not have the skill to do something.
869	unsolicited	If something is unsolicited	I'm receiving more unsolicited mail than I used to.
870	unsolvable	If something is unsolvable
871	unsolved	If something is unsolved
872	unsophisticated	An unsophisticated person lacks refined knowledge or tastes.
873	unsortable	If something is unsortable
874	unsound	If something is unsound
875	unsounder	The comparative form of unsound; more unsound.
876	unsoundest	The superlative form of unsound; most unsound.
877	unspecified	Not specified; without specification.
878	unspoiled	If something is unspoiled
879	unspoilt	If something is unspoilt
880	unstable	Something that is not stable
881	unsteadied	The past tense and past participle of unsteady.
882	unsteadier	The comparative form of unsteady; more unsteady.
883	unsteadies	The third-person singular form of unsteady.
884	unsteadiest	The superlative form of unsteady; most unsteady.
885	unsteadily	If something is done unsteadily	He climbed the stairs unsteadily, grasping the railing and gasping for breath.
886	unsteady	Not held in position very well.
887	unsteadying	The present participle of unsteady.
888	unstrap	If you unstrap something
889	unstrapped	The past tense and past participle of unstrap.
890	unstrapping	The present participle of unstrap.
891	unstraps	The third-person singular form of unstrap.
892	unsubscribe	If you unsubscribe
893	unsubscribed	The past tense and past participle of unsubscribe.
894	unsubscribes	The third-person singular form of unsubscribe.
895	unsubscribing	The present participle of unsubscribe.
896	unsuccessful	If something is unsuccessful	I tried, but I was unsuccessful.
897	unsuccessfully	In an unsuccessful way; without success; failing.	He tried unsuccessfully to climb the mountain.
898	unsuccessfulness	Unsuccessfulness is the state or condition of being unsuccessful.
899	unsuitable	If something is unsuitable
900	unsullied	If something is unsullied
901	unsung hero	An unsung hero is a person who does heroic things	I'd like to salute all the unsung heroes who made a difference but never became famous.
902	unsung heroes	The plural form of unsung hero; more than one (kind of) unsung hero.
903	unsupervised	If a kid is unsupervised
904	unsupportive	If a person is unsupportive
905	unsure	If you are unsure about something
906	unsurprised	If someone is unsurprised about something
907	unsuspicious	Not suspicious.	The unsuspicious crowd never thought that he was lying.
908	unsustainable	If something is unsustainable
909	unsweetened	If something is unsweetened
910	untag	If you untag something
911	untagged	The past tense and past participle of untag.
912	untagging	The present participle of untag.
913	untags	The third-person singular form of untag.
914	untangle	If you untangle something
915	untangled	The past tense and past participle of untangle.
916	untangles	The third-person singular form of untangle.
917	untangling	The present participle of untangle.
918	untenable	If something
919	untestable	If something is untestable
920	Unthinkable
921	untidier	The comparative form of untidy; more untidy.
922	untidiest	The superlative form of untidy; most untidy.
923	untidiness	Untidiness is the quality of being untidy.
924	untidy	If a place is untidy	I have never seen such an untidy bedroom!
925	untie	If you untie a knot
926	untied	A string	Your shoelaces are untied.
927	unties	The third-person singular form of untie.
928	until	If something is true until x	We didn't have any snow until the end of December.; He worked until he was 72 years old.; Until now, there was nothing we could do.
929	untoasted	If something is untoasted
930	untouchable
931	untouched	If something is untouched
932	untrained	If a person is untrained
933	untreated	If something
934	untrue	If something is untrue	The statement made by the defendant was untrue.
935	untrustworthy	If a person is untrustworthy
936	untruth	An untruth is a lie or false statement.
937	untruthful	If a person is untruthful
938	untruths	The plural form of untruth; more than one (kind of) untruth.
939	untuck	If you untuck something
940	untucked	The past tense and past participle of untuck.
941	untucking	The present participle of untuck.
942	untucks	The third-person singular form of untuck.
943	untwine	If you untwine something
944	untwined	The past tense and past participle of untwine.
945	untwines	The third-person singular form of untwine.
946	untwining	The present participle of untwine.
947	untwist	If you untwist something
948	untwisted	The past tense and past participle of untwist.
949	untwisting	The present participle of untwist.
950	untwists	The third-person singular form of untwist.
951	untying	The present participle of untie.
952	ununbium	Ununbium is a synthetic element with an atomic number of 112 and symbol Cn.
953	ununhexium	Ununhexium is a synthetic element with an atomic number of 116 and symbols Uuh and Lv.
954	ununoctium	Ununoctium is a radioactive element with an atomic number of 118 and symbol Uuo.
955	ununpentium	Ununpentium is a synthetic element with an atomic number of 115 and symbol Uup.
956	ununquadium	Ununquadium is a synthetic radioactive element with an atomic number of 114 and symbol Fl.
957	ununseptium	Ununseptium is a synthetic element with an atomic number of 117 and symbol Uus.
958	ununtrium	Ununtrium is a synthetic radioactive element with an atomic number of 113 and symbol Uut.
959	unusable	If something is unusable	The toilet was unusable because it was blocked.
960	unused	If something is unused it is not being used now or has not been used for some time.	Today most of its factories sit unused, their silent machinery rusting.; An old car that had gone unused for months should be hard to start.; We're taking the unused space and building three additional smaller rooms.
961	unusual	If something is unusual	It was a warm night, unusual for mid Winter.; With his bright pink hair, he was most unusual to look at.; It is not unusual for him to be late.
962	unusually	If something is done unusually
963	unuttered	Unuttered means that what is being described or said has not been uttered before or is not currently being uttered by anyone else	The common view that he was strange remained unuttered by his friends.
964	unveil	If you unveil something that is hidden	Elon Musk unveiled the new cyber truck yesterday.
965	unveiled	The past tense and past participle of unveil.
966	unveiling	The present participle of unveil.
967	unveils	The third-person singular form of unveil.
968	unverifiable	If something is unverifiable
969	unwanted	If something is unwanted
970	unwarier	The comparative form of unwary; more unwary.
971	unwariest	The superlative form of unwary; most unwary.
972	unwariness	Unwariness is the quality of being unwary.
973	unwarinesses	The plural form of unwariness; more than one (kind of) unwariness.
974	unwary	An unwary person does not know or think about possible dangers or problems
975	unwashable	If something is unwashable
976	unwavering	Not wavering.
977	unwaveringly	In an unwavering way.
978	unwaxed	Not waxed.
979	unwed	An unwed person is not married.
980	unwedded	The past tense and past participle of unwed.
981	unwedding	The present participle of unwed.
982	unweds	The plural form of unwed; more than one (kind of) unwed.
983	unwholesome	If something is unwholesome
984	unwilling	If a person is unwilling to do something	We are unwilling to restore his previous privileges after his betrayal of our trust.
985	unwillingly	Doing something unwillingly is doing something because you have to even though you don't want to.	He began to clean his room unwillingly after being asked five times.
986	unwillingness	Unwillingness is the state of being unwilling to do something.
987	unwind	If you unwind	I just need to unwind after work.
988	unwinding	The present participle of unwind.
989	unwinds	The third-person singular form of unwind.
990	unwise	If something is unwise
991	unwisely	If you do something unwisely	He unwisely drove back home after having some drinks at the party.
992	unworthy
993	unwound	The past tense and past participle of unwind.
994	unwrap	If you unwrap something	He unwrapped the sweet and ate it.
995	unwrapped	The past tense and past participle of unwrap.
996	unwrapping	The present participle of unwrap.
997	unwraps	The third-person singular form of unwrap.
998	unwrinkle	If you unwrinkle something
999	unwrinkled	If something is unwrinkled	Your face looks so unwrinkled!
1000	unwrinkles	The third-person singular form of unwrinkle.
1001	unwrinkling	The present participle of unwrinkle.
1002	unwritten	An unwritten rule or understanding is one that is generally known or understood without being stated explicitly.	It's an unwritten rule that you lock the gate when you leave the swimming pool.; There was an unwritten agreement between them.
1003	unwrittenness	The unwrittenness of a rule
1004	unyielding	If you are unyielding
1005	unzip	If you unzip your pants
1006	unzipped	The past tense and past participle of unzip.
1007	unzipping	The present participle of unzip.
1008	unzips	The third-person singular form of unzip.
1009	up	Directed or moving upwards.	The flag is up.
1010	up in arms	If you are up in arms	The workers were up in arms after they heard about the earlier starting time.
1011	up to	before	Up to now, we haven't had any problems.; Read up to page 27.
1012	Upasik
1013	upbringing	The upbringing of someone is the traits learnt by them during the process of growing up.
1014	upbringings	The plural form of upbringing; more than one (kind of) upbringing.
1015	upcycle	If you upcycle waste materials
1016	upcycled	The past tense and past participle of upcycle.
1017	upcycles	The third-person singular form of upcycle.
1018	upcycling	The present participle of upcycle.
1019	update	New information.	He gave me an update on the situation in New York
1020	updated	The past tense and past participle of update.
1021	updates	The plural form of update; more than one (kind of) update.
1022	updating	The present participle of update.
1023	Updesh
1024	upend	If you upend something
1025	upended	The past tense and past participle of upend.
1026	upending	The present participle of upend.
1027	upends	The third-person singular form of upend.
1028	upgrade	If you upgrade something
1029	upgraded	The past tense and past participle of upgrade.
1030	upgrades	The third-person singular form of upgrade.
1031	upgrading	The present participle of upgrade.
1032	upheaval	An upheaval is the upward movement of a portion of the earth's crust.
1033	upheavals	The plural form of upheaval; more than one (kind of) upheaval.
1034	upheld	The past tense and past participle of uphold.
1035	uphill	From lower ground to higher ground	She got tired walking uphill.; The school is uphill from my house.
1036	uphold	If you uphold something
1037	upholding	The present participle of uphold.
1038	upholds	The third-person singular form of uphold.
1039	upkeep	Upkeep is the work of taking care of something.	The upkeep of this big house is a lot of work every year.
1040	uplift	To uplift is to raise something or someone to a point where their physical or mental status is better	To uplift my mode, I play music.
1041	uplifted	The past tense and past participle of uplift.
1042	uplifting	The present participle of uplift.
1043	uplifts	The third-person singular form of uplift.
1044	upload	If you upload something	I tried to upload the image, but I got an error.
1045	uploaded	The past tense and past participle of upload.
1046	uploading	The present participle of upload.
1047	uploads	The third-person singular form of upload.
1048	upon	on or onto	The police were called upon to save him.; The snow fell gently upon the lake.
1049	upped	The past tense and past participle of up.
1050	upper	The upper thing is the one that is in a higher position.	The upper floors of the building are for offices and the lower floors for housing.
1051	uppermost	The uppermost point	Birds sat in the uppermost branchs of the tree.
1052	uppers	The plural form of upper; more than one (kind of) upper.
1053	upping	The present participle of up.
1054	Uppsala	Uppsala is a city in Sweden.
1055	upright	A long or flat thing is upright when it is at a right angle to the ground. That means that one end is exactly above the other end.	There was so much heavy ice on the tree that the whole tree bent down close to the ground, but after the ice melted, the tree went back upright again.
1056	uprising	An uprising is a revolt by a group of people that attempts to get rid of a government or policies that the people do not like.
1057	uprisings	The plural form of uprising; more than one (kind of) uprising.
1058	uproar	An uproar is a loud noise
1059	uproarious	If something is uproarious
1060	uproariously	If something happens uproariously
1061	uproars	The plural form of uproar; more than one (kind of) uproar.
1062	uproot	If you uproot something
1063	uprooted	The past tense and past participle of uproot.
1064	uprooting	The present participle of uproot.
1065	uproots	The third-person singular form of uproot.
1066	ups	The plural form of up; more than one (kind of) up.
1067	Ups and downs
1068	upset	A disturbance or disruption.	My late arrival caused the professor considerable upset.
1069	upsets	The plural form of upset; more than one (kind of) upset.
1070	upsetting	Something or someone that upsets somebody.
1071	upside	An upside is a good aspect of a situation that is otherwise bad.
1072	upside down	If something is upside down
1073	upsides	The plural form of upside; more than one (kind of) upside.
1074	upsilon	Twentieth letter of Greek.
1075	upsilons	The plural form of upsilon; more than one (kind of) upsilon.
1076	upstage	The part of a stage that is farthest from the audience or camera.
1077	upstaged	The past tense and past participle of upstage.
1078	upstages	The third-person singular form of upstage.
1079	upstaging	The present participle of upstage.
1080	upstairs	If something is upstairs	Let us head upstairs, from the kitchen to the bedroom.
1081	upstream	If x is upstream from y	Oxford is upstream from London on the River Thames.; He found it very difficult to move the boat upstream against the river.
1082	uptake	The uptake of something is the action of taking or using something that is available.
1083	uptakes	The plural form of uptake; more than one (kind of) uptake.
1084	up-to-date	If something is up-to-date
1085	upward	moving or facing up	The company's sales have been following an upward trend for the last three years.; Push the button beside the upward arrow.
1086	upwards	moving or facing up	The company's sales have been following an upwards trend for the last three years.; Push the button beside the upwards arrow.
1087	upwind	If x is upwind of y	I'd drop the boat slightly upwind of him so it would blow downwind to him.; If you don't want the animals to know you're there, don't stand upwind.
1088	Uranian	A person of a third sex — originally
1089	Uranians	The plural form of Uranian; more than one (kind of) Uranian.
1090	uranium	Uranium is an element of the periodic table with atomic number 92. Its symbol is U.	Uranium is the natural element with the biggest atomic core.
1091	uraniums	The plural form of uranium; more than one (kind of) uranium.
1092	Uranus	Uranus is the seventh planet from the Sun in the Solar System.	The rings of Uranus are tilted.
1093	urban	If something is urban	an urban neighborhood or region
1094	urbanise	If you urbanise something
1095	urbanised	The past tense and past participle of urbanise.
1096	urbanises	The third-person singular form of urbanise.
1097	urbanising	The present participle of urbanise.
1098	urbanize	If you urbanize something
1099	urbanized	The past tense and past participle of urbanize.
1100	urbanizes	The third-person singular form of urbanize.
1101	urbanizing	The present participle of urbanize.
1102	Urdu Maali
1103	urea	The main nitrogen-containing substance in the urine of mammals.
1104	ureas	The plural form of urea; more than one (kind of) urea.
1105	urge	An urge is a want to do something.	After watching the basketball game, he had an urge to play too.
1106	urged	The past tense and past participle of urge.
1107	urgencies	The plural form of urgency; more than one (kind of) urgency.
1108	urgency	Urgency is when there is something very important and necessary and it needs quick attention from you.
1109	urgent	If something is urgent	An urgent appeal was sent out for assistance.
1110	urgently	If someone is doing something urgently
1111	urges	The plural form of urge; more than one (kind of) urge.
1112	urging	The present participle of urge.
1113	urinal	A urinal is a device or fixture used for urination.
1114	urinals	The plural form of urinal; more than one (kind of) urinal.
1115	urinary	Something that is related to urine	urinary system; urinary tract
1116	urinate	When a person or animal urinates	I drink a lot of water and need to urinate several times a day.
1117	urinated	The past tense and past participle of urinate.
1118	urinates	The third-person singular form of urinate.
1119	urinating	The present participle of urinate.
1120	urination	Urination is the process of urinating.
1121	urinations	The plural form of urination; more than one (kind of) urination.
1122	urine	Urine is the liquid waste from the bladder	The doctor tested the man's urine to see if he had diabetes.
1123	urn	An urn is a vase with a footed base.
1124	urns	The plural form of urn; more than one (kind of) urn.
1125	urogenital sinus	A body part present in the embryos of mammals.
1126	urogenital sinuses	The plural form of urogenital sinus; more than one (kind of) urogenital sinus.
1127	urology	Urology is the branch of medicine that treats disorders of the urinary system.
1128	Ursula
1129	us	You use us to talk or write about yourself and other people together with you.	She said hello to us.; Can you tell us where it is?; We think this is important for all of us.
1130	us all	You use us all two emphasize that you are talking to or about 100% of the people with you.	We have to make this better for us all.; I want us all to be here early tomorrow.
1131	us both	You use us both to emphasize that you are talking about yourself and another person together.	It would be better for us both to go?; He wants us both to come.
1132	usabilities	The plural form of usability; more than one (kind of) usability.
1133	usability	The usability of something is how easy it is to use.	Usability is our main goal.
1134	usable	If something is usable
1135	usage	The way or the amount of using; use.	I learnt the usage of some verbs while studying the language.
1136	usages	The plural form of usage; more than one (kind of) usage.
1137	use	Make use of; apply.	I use oil to cook.; This hammer is used to hit the nails.
1138	useable	If something is useable
1139	used	The past tense and past participle of use.	I used the key to enter the house.
1140	used to	If something used to happen	I remember when we used to stop by the beach every Sunday.; She started the exercise program, which we didn't use to have.; We don't go there anymore, but we used to.
1141	useful	Good for a purpose. If something is useful it can be used for something.
1142	usefulness	Something's usefulness is how useful it is.
1143	useless	If something is useless
1144	uselessness	Uselessness is the state of being useless.	It won't work, and the uselessness of the idea should be clear to everyone.
1145	uselessnesses	The plural form of uselessness; more than one (kind of) uselessness.
1146	user	A user is someone who uses something.
1147	users	The plural form of user; more than one (kind of) user.
1148	uses	The third-person singular form of use.
1149	usher	An usher is a person who escorts people to their seats.
1150	ushered	The past tense and past participle of usher.
1151	ushering	The present participle of usher.
1152	ushers	The plural form of usher; more than one (kind of) usher.
1153	using	The present participle of use.
1154	Using dis
1155	USMC	USMC stands for the United States Marine Corps.
1156	usual	something that is usual happens often	It is usual for me to read the newspaper in the morning.
1157	usually	You use usually to talk about what happens most of the time.	He usually takes a long time to get ready, but he can be fast too.; Usually they come by car so I don't think they'll walk.
1158	usurp	If you usurp a place
1159	usurped	The past tense and past participle of usurp.
1160	usurping	The present participle of usurp.
1161	usurps	The third-person singular form of usurp.
1162	usury	Usury is the practice of lending money at extremely high interest rates.
1163	Utah	Utah is a state in the United States.	Salt Lake City is the capital of Utah.
1164	utensil	Utensils are simple tools such as knives and forks	Please replace these kitchen utensils with newer ones.
1165	utensils	The plural form of utensil; more than one (kind of) utensil.
1166	uteri	The plural form of uterus; more than one (kind of) uterus.
1167	uterus	The uterus is the internal organ inside of a female mammal where an embryo grows into an infant ready to be born.	A man does not have a uterus and cannot give birth.; Female fish do not have a uterus, and so the embryo must grow inside of an egg outside of the body.
1168	uteruses	The plural form of uterus; more than one (kind of) uterus.
1169	utilisation	The utilisation of something is the act of using it.
1170	utilisations	The plural form of utilisation; more than one (kind of) utilisation.
1171	utilise	When you utilise something	Our program will utilise bubblesort.
1172	utilised	The past tense and past participle of utilise.
1173	utilises	The third-person singular form of utilise.
1174	utilising	The present participle of utilise.
1175	utilities	The plural form of utility; more than one (kind of) utility.	Some people think water and electricity are the most important utilities.
1176	utility	Utilities are the basic services that come to your house	The government is raising prices on drugs, beer and most public utilities.
1177	utilization	The utilization of something is the act of using it.
1178	utilizations	The plural form of utilization; more than one (kind of) utilization.
1179	utilize	When you utilize something	Our program will utilize bubblesort.
1180	utilized	The past tense and past participle of utilize.
1181	utilizes	The third-person singular form of utilize.
1182	utilizing	The present participle of utilize.
1183	utopia	Utopia is a world in which everything and everyone works in perfect harmony.
1184	utopiae	The plural form of utopia; more than one (kind of) utopia.
1185	utopias	The plural form of utopia; more than one (kind of) utopia.
1186	Uttar Khand
1187	Uttaranchal	Uttaranchal is a state in India.
1188	utter	To utter is to say something.	Don't utter that name again!
1189	utterance	An utterance means words that are spoken in order to communicate a fact or claim	Not every utterance is true.
1190	utterances	The plural form of utterance; more than one (kind of) utterance.
1191	uttered	The past tense and past participle of utter.
1192	uttering	The present participle of utter.
1193	utterly	Refers to something being completely or entirely	Jim's proposal was utterly ridiculous.; How utterly generous of you to offer me the use of your beach house for the month!; Karen's manners are utterly gross.; She practiced the Black Key Etude until she was utterly exhausted.
1194	utters	The third-person singular form of utter.
1195	Uyghuristan
1196	Uzbekistan	Uzbek Republic is a landlocked country in South-Central Asia; the capital city is Tashkent.
1197	uzi	An uzi is a type of submachine gun.	The police were carrying uzis.
1198	uzis	The plural form of uzi; more than one (kind of) uzi.
1199	Uzbek

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