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English Words with U and Examples in Sentences

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

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