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

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