1050+ Nouns That Start With U

If you’re looking for a comprehensive list of English nouns that start with the letter U, you’ve come to the right place. This article includes both common and less common examples.

You’ll find everything from everyday items like umbrellas and underwear to less familiar things like unicorns and ukuleles. Whether you’re a student studying English or simply curious about the language, this list is sure to be helpful.

So without further ado, let’s take a look at some of the most interesting nouns that start with U.

Nouns That Start With The Letter U

There are many interesting nouns that start with the letter U. Here are just a few examples:

• Umbrella: A device used for protection from the rain or sun.
• Umpire: A referee in baseball or other sports.
• Unicorn: A mythical creature with a single horn on its head.
• University: A school that offers undergraduate and graduate degrees.
• Urn: A container often used to hold cremated ashes.
• User: A person who uses a particular product or service.

As you can see, there are a wide variety of nouns that start with U. Whether you’re looking for something to use in your writing or just want to expand your vocabulary, these words can be a great place to start.

18 Nouns That Start With UA, UB, UC, UD

uakari	either of two short-tailed mostly naked-faced South American monkeys (Cacajao melanocephalus and C. calvus)
uakaris	either of two short-tailed mostly naked-faced South American monkeys (Cacajao melanocephalus and C. calvus)
ubiety	the quality or state of being in a place
ubiquitarian	of or relating to the doctrine of the Ubiquitarians
ubiquitarians	of or relating to the doctrine of the Ubiquitarians
ubiquitousness	existing or being everywhere at the same time
ubiquity	The fact of appearing everywhere or of being very common.
Uccello	Paolo 1397–1475 originally Paolo di Dono Florentine painter
Udaipur	former state of northwestern India, now part of Rajasthan statecity in northwestern India population474500
Udine	commune in the Friuli-Venezia Giulia region of northeastern Italy population98000
udal	of, relating to, or constituting udal
udals	of, relating to, or constituting udal
udder	The mammary gland of female cattle, sheep, goats, horses, and related animals, having two or more teats and hanging between the hind legs of the animal.
udders	The mammary gland of female cattle, sheep, goats, horses, and related animals, having two or more teats and hanging between the hind legs of the animal.
udo	a stout Japanese herb (Aralia cordata) the blanched young shoots of which are used especially as a vegetable and in salads
udometer	rain gage
udometers	rain gage
udos	a stout Japanese herb (Aralia cordata) the blanched young shoots of which are used especially as a vegetable and in salads

18 Nouns Starting With UF, UG, UH

Ufa	The capital of Bashkiria, in the Ural Mountains, in southwestern Russia; population 1,021,500 (est. 2008).
ufo	A mysterious object seen in the sky for which, it is claimed, no orthodox scientific explanation can be found.
ufology	The study of UFOs.
ufos	A mysterious object seen in the sky for which, it is claimed, no orthodox scientific explanation can be found.
Uganda	A landlocked country in East Africa; population 39,000,000 (estimated 2015); capital, Kampala; languages, English (official), Swahili, and other languages.
Ugandan	Relating to or characteristic of Uganda or its people. A native or inhabitant of Uganda, or a person of Ugandan descent.
Ugrian	a member of a division of the Finno-Ugric peoples that includes the Hungarians and two peoples of western Siberia
Ugric	Relating to or denoting a branch of the Finno-Ugric language family comprising Hungarian and the Ob-Ugric languages.
ugliness	The quality of being unpleasant or repulsive in appearance.
uhlan	A cavalryman armed with a lance as a member of various European armies.
uhlans	A cavalryman armed with a lance as a member of various European armies.
uhuru	freedom

Ugandans	Ugro-Finnic	ugli
uglies	uglis	ugsomeness

71 Words That Start With UI, UK, UL Nouns

uintatheres	uintatheriumsense 2
uitlander	South African
uitlanders	South African
Ukraine	A country in eastern Europe, north of the Black Sea; population 44,800,000 (estimated 2015); capital, Kiev; official language, Ukrainian.
Ukrainian	A native or inhabitant of Ukraine, or a person of Ukrainian descent. The East Slavic language of Ukraine. Relating to Ukraine, its people, or their language.
Ukrainians	A native or inhabitant of Ukraine, or a person of Ukrainian descent. The East Slavic language of Ukraine. Relating to Ukraine, its people, or their language.
ukase	An edict of the Russian government.
ukases	An edict of the Russian government.
uke	ukulele
ukes	ukulele
ukiyo-e	A school of Japanese art depicting subjects from everyday life, dominant in the 17th–19th centuries.
ukulele	A small four-stringed guitar of Hawaiian origin.
ukuleles	A small four-stringed guitar of Hawaiian origin.
Ullswater	lake 7 miles (11 kilometers) long in Cumbria, northwestern England
Ulm	An industrial city on the Danube River in Baden-Württemberg, in southern Germany; population 120,900 (est. 2006).
Ulsterman	A male native or inhabitant of Ulster.
Ulysses	odysseus
ulcer	An open sore on an external or internal surface of the body, caused by a break in the skin or mucous membrane that fails to heal.
ulceration	The formation of an ulcer or ulcers.
ulcerations	The formation of an ulcer or ulcers.
ulcers	An open sore on an external or internal surface of the body, caused by a break in the skin or mucous membrane that fails to heal.
ulema	A body of Muslim scholars recognized as having specialist knowledge of Islamic sacred law and theology.
ulemas	A body of Muslim scholars recognized as having specialist knowledge of Islamic sacred law and theology.
ulex	a genus of Eurasian spiny shrubs (family Leguminosae) including the common furze that are usually destitute of true leaves and have solitary or racemose yellow flowers with a 2-lipped colored calyx
ulexes	a genus of Eurasian spiny shrubs (family Leguminosae) including the common furze that are usually destitute of true leaves and have solitary or racemose yellow flowers with a 2-lipped colored calyx
ullage	The amount by which a container falls short of being full.
ullages	the amount that a container (such as a tank or cask) lacks of being full
ulna	The thinner and longer of the two bones in the human forearm, on the side opposite to the thumb.
ulotrichy	the condition of having woolly or crisp hair
ulster	A man’s long, loose overcoat of rough cloth, typically with a belt at the back. A former province of Ireland, in the north of the island. The nine counties of Ulster are now divided between Northern Ireland (Antrim, Down, Armagh, Londonderry, Tyrone, and Fermanagh) and the Republic of Ireland (Cavan, Donegal, and Monaghan).
ulsters	A man’s long, loose overcoat of rough cloth, typically with a belt at the back. A former province of Ireland, in the north of the island. The nine counties of Ulster are now divided between Northern Ireland (Antrim, Down, Armagh, Londonderry, Tyrone, and Fermanagh) and the Republic of Ireland (Cavan, Donegal, and Monaghan).
ultima	the last syllable of a word
ultimacy	the quality or state of being ultimate
ultimas	the last syllable of a word
ultimate	Being or happening at the end of a process; final. the ultimateA final or fundamental fact or principle.
ultimates	Being or happening at the end of a process; final. the ultimateA final or fundamental fact or principle.
ultimatum	A final demand or statement of terms, the rejection of which will result in retaliation or a breakdown in relations.
ultimatums	A final demand or statement of terms, the rejection of which will result in retaliation or a breakdown in relations.
ultimogeniture	A principle of inheritance in which the right of succession belongs to the youngest child.
ultra	An extremist. Very; extremely.
ultrafiche	a microfiche whose microimages are of printed matter reduced 90 or more times
ultrafiches	a microfiche whose microimages are of printed matter reduced 90 or more times
ultrafilter	a dense filter used for the filtration of a colloidal solution that holds back the dispersed particles but not the liquid
ultraism	The holding of extreme opinions.
ultraist	A holder of extreme opinions.
ultraists	A holder of extreme opinions.
ultramarine	A brilliant deep blue pigment originally obtained from lapis lazuli.
ultramontane	Advocating supreme papal authority in matters of faith and discipline. Situated on the other side of the Alps from the point of view of the speaker. A person advocating supreme papal authority.
ultrasonics	The science and application of ultrasonic waves.
ultrasound	Sound or other vibrations having an ultrasonic frequency, particularly as used in medical imaging.
ultrastructure	Fine structure, especially within a cell, that can be seen only with the high magnification obtainable with an electron microscope.
ultraviolet	(of electromagnetic radiation) having a wavelength shorter than that of the violet end of the visible spectrum but longer than that of X-rays. The ultraviolet part of the spectrum; ultraviolet radiation.
ululation	to utter a loud, usually protracted, high-pitched, rhythmical sound especially as an expression of sorrow, joy, celebration, or reverence
ulva	sea lettuce

uintathere	Ulric	Ulrica
Ultan	ulcerousness	ulitis
ultracentrifugation	ultracentrifuge	ultrafiltration
ultramicroscope	ultramicroscopy	ultramontanism
ultramontanist	ultramontanists	ultrasonography
ultrastructures

34 Nouns Beginning With UM

Umberto	name of 2 kings of Italy
Umbria	A region in central Italy, in the valley of the Tiber River; capital, Perugia.
Umbrian	Relating to Umbria, its people, or their languages. A native or inhabitant of Umbria, especially in pre-Roman times. An extinct Italic language of central Italy, related to Oscan and surviving in inscriptions mainly of the 2nd and 1st centuries BC.
umbel	A flower cluster in which stalks of nearly equal length spring from a common center and form a flat or curved surface, characteristic of the parsley family.
umbellifer	A plant of the parsley family.
umbellifers	A plant of the parsley family.
umbellule	a secondary umbel in a compound umbel
umbellules	a secondary umbel in a compound umbel
umbels	A flower cluster in which stalks of nearly equal length spring from a common center and form a flat or curved surface, characteristic of the parsley family.
umber	A natural pigment resembling but darker than ocher, normally dark yellowish-brown in color (raw umber) or dark brown when roasted (burnt umber). A brownish-gray moth with coloring that resembles tree bark.
umbers	A natural pigment resembling but darker than ocher, normally dark yellowish-brown in color (raw umber) or dark brown when roasted (burnt umber). A brownish-gray moth with coloring that resembles tree bark.
umbilical	Relating to or affecting the navel or umbilical cord.
umbilication	depressed like a navel
umbilicus	Anatomy
umbilicuses	Anatomy
umbo	historical Biology
umbos	historical Biology
umbra	The fully shaded inner region of a shadow cast by an opaque object, especially the area on the earth or moon experiencing the total phase of an eclipse.
umbrage	Offense or annoyance. archaic
umbrageousness	affording shade
umbrages	a feeling of pique or resentment at some often fancied slight or insult
umbras	The fully shaded inner region of a shadow cast by an opaque object, especially the area on the earth or moon experiencing the total phase of an eclipse.
umbrella	A device consisting of a circular canopy of cloth on a folding metal frame supported by a central rod, used as protection against rain or sometimes sun. A protecting force or influence. usually as modifierZoology
umbrellas	A device consisting of a circular canopy of cloth on a folding metal frame supported by a central rod, used as protection against rain or sometimes sun. A protecting force or influence. usually as modifierZoology
umbrette	hammerkop
umbrettes	hammerkop
umiak	An open boat made of animal hide stretched over a wooden frame, traditionally rowed by Inuit women.
umiaks	An open boat made of animal hide stretched over a wooden frame, traditionally rowed by Inuit women.
umlaut	A mark ( ¨ ) used over a vowel, as in German or Hungarian, to indicate a different vowel quality, usually fronting or rounding. Modify (a form or sound) by using an umlaut.
umlauts	A mark ( ¨ ) used over a vowel, as in German or Hungarian, to indicate a different vowel quality, usually fronting or rounding. Modify (a form or sound) by using an umlaut.
umpirages	the office or authority of an umpire
umpire	(in some sports) an official who watches a game or match closely to enforce the rules and arbitrate on matters arising from the play. Act as an umpire.
umpires	(in some sports) an official who watches a game or match closely to enforce the rules and arbitrate on matters arising from the play. Act as an umpire.
umpiring	(in some sports) an official who watches a game or match closely to enforce the rules and arbitrate on matters arising from the play. Act as an umpire.

610 Nouns That Start With UN

Uniat	Relating to any community of Christians in eastern Europe or the Near East that acknowledges papal supremacy but retains its own liturgy. A member of a Uniate community.
Unitarian	A person, especially a Christian, who asserts the unity of God and rejects the doctrine of the Trinity. Relating to the Unitarians.
unanimity	Agreement by all people involved; consensus.
unbelief	Lack of religious belief; an absence of faith.
uncial	Of or written in a majuscule script with rounded unjoined letters which is found in European manuscripts of the 4th–8th centuries and from which modern capital letters are derived. rare An uncial letter or script.
uncials	Of or written in a majuscule script with rounded unjoined letters which is found in European manuscripts of the 4th–8th centuries and from which modern capital letters are derived. rare An uncial letter or script.
uncle	The brother of one’s father or mother or the husband of one’s aunt.
uncles	The brother of one’s father or mother or the husband of one’s aunt.
unction	formal archaic A manner of expression arising or apparently arising from deep emotion, especially as intended to flatter.
unctions	formal archaic A manner of expression arising or apparently arising from deep emotion, especially as intended to flatter.
undercast	Allocate the parts in (a play or movie) to insufficiently skilled actors.
undercut	Offer goods or services at a lower price than (a competitor)Cut or wear away the part below or under (something, especially a cliff)Weaken; undermine. Tennis A space formed by the removal or absence of material from the lower part of something, such as a cliff, a coal seam, or part of a carving in relief. British A hairstyle in which the hair is shaved or cut very short on the sides or back of the head but left relatively long on top.
underdog	A competitor thought to have little chance of winning a fight or contest.
underfeed	Not give enough food to.
underflow	An undercurrent. Computing
underfur	An inner layer of short, fine fur or down underlying an animal’s outer fur, providing warmth and waterproofing.
undergrad	An undergraduate.
underlay	Place something under (something else), especially to support or raise it. Something placed under or behind something else, especially material laid under a carpet for protection or support.
underlays	Place something under (something else), especially to support or raise it. Something placed under or behind something else, especially material laid under a carpet for protection or support.
underline	Draw a line under (a word or phrase) to give emphasis or indicate special type. A line drawn under a word or phrase, especially for emphasis. The line of the lower part of an animal’s body.
underling	usually underlings
underlip	The lower lip of a person or animal.
underlips	The lower lip of a person or animal.
underpass	A road or pedestrian tunnel passing under another road or a railroad.
underplot	A subordinate plot in a play, novel, or similar work.
underset	Place (something) under something else, especially for support.
undersets	Place (something) under something else, especially for support.
underside	The bottom or lower side or surface of something.
undersoil	Subsoil.
underthrusts	Force (a crustal plate or other body of rock) beneath another plate or block. An instance of one plate or block being forced underneath another.
undertow	A current of water below the surface and moving in a different direction from any surface current.
undies	Articles of underwear, especially those of a woman or girl.
undine	A female spirit or nymph inhabiting water.
undines	A female spirit or nymph inhabiting water.
undoing	A person’s ruin or downfall.
undress	Take off one’s clothes. The state of being naked or only partially clothed. Military
unease	Anxiety or discontent.
unguent	A soft greasy or viscous substance used as ointment or for lubrication.
unguents	A soft greasy or viscous substance used as ointment or for lubrication.
unguis	A nail, claw, or fang.
ungulate	A hoofed mammal.
uni	One; having or consisting of one.
unicorn	A mythical animal typically represented as a horse with a single straight horn projecting from its forehead. Something that is highly desirable but difficult to find or obtain. historical
unicorns	A mythical animal typically represented as a horse with a single straight horn projecting from its forehead. Something that is highly desirable but difficult to find or obtain. historical
unicycle	A cycle with a single wheel, typically used by acrobats.
uniform	Remaining the same in all cases and at all times; unchanging in form or character. Denoting a garment forming part of a person’s uniform. The distinctive clothing worn by members of the same organization or body or by children attending certain schools. A code word representing the letter U, used in radio communication. Make uniform.
uniforms	Remaining the same in all cases and at all times; unchanging in form or character. Denoting a garment forming part of a person’s uniform. The distinctive clothing worn by members of the same organization or body or by children attending certain schools. A code word representing the letter U, used in radio communication. Make uniform.
union	The action or fact of joining or being joined, especially in a political context. A club, society, or association formed by people with a common interest or purpose. A political unit consisting of a number of states or provinces with the same central government. Mathematics A pipe coupling. A part of a flag with an emblem symbolizing national union, typically occupying the upper corner next to the staff. A fabric made of two or more different yarns, typically cotton and linen or silk. US An industrial and residential township in northeastern New Jersey; population 53,673 (est. 2008).
unionism	The policies and practices of labor unions, particularly those concerned with protecting and furthering the rights of workers.
unionist	A member of a labor union. A person in Northern Ireland, especially a member of a political party, supporting or advocating union with Great Britain.
unions	The action or fact of joining or being joined, especially in a political context. A club, society, or association formed by people with a common interest or purpose. A political unit consisting of a number of states or provinces with the same central government. Mathematics A pipe coupling. A part of a flag with an emblem symbolizing national union, typically occupying the upper corner next to the staff. A fabric made of two or more different yarns, typically cotton and linen or silk. US An industrial and residential township in northeastern New Jersey; population 53,673 (est. 2008).
unique	Being the only one of its kind; unlike anything else. A unique person or thing.
uniques	Being the only one of its kind; unlike anything else. A unique person or thing.
unison	Simultaneous performance of action or utterance of speech. Music Performed in unison.
unisons	Simultaneous performance of action or utterance of speech. Music Performed in unison.
unit	An individual thing or person regarded as single and complete but which can also form an individual component of a larger or more complex whole. A device that has a specified function, especially one forming part of a complex mechanism. A quantity chosen as a standard in terms of which other quantities may be expressed. The number one.
unite	Come or bring together for a common purpose or action.
uniter	A person who or thing which unites people or things; a uniting agency or quality.
uniters	A person who or thing which unites people or things; a uniting agency or quality.
unites	Come or bring together for a common purpose or action.
unities	The state of being united or joined as a whole. Mathematics In Aristotle’s Poetics, each of the three dramatic principles requiring limitation of the supposed time of a drama to that occupied in acting it or to a single day (unity of time), use of one scene throughout (unity of place), and concentration on the development of a single plot (unity of action).
uniting	Come or bring together for a common purpose or action.
units	An individual thing or person regarded as single and complete but which can also form an individual component of a larger or more complex whole. A device that has a specified function, especially one forming part of a complex mechanism. A quantity chosen as a standard in terms of which other quantities may be expressed. The number one.
unity	The state of being united or joined as a whole. Mathematics In Aristotle’s Poetics, each of the three dramatic principles requiring limitation of the supposed time of a drama to that occupied in acting it or to a single day (unity of time), use of one scene throughout (unity of place), and concentration on the development of a single plot (unity of action).
univalve	Having one valve or shell.
universe	All existing matter and space considered as a whole; the cosmos. The universe is believed to be at least 10 billion light years in diameter and contains a vast number of galaxies; it has been expanding since its creation in the Big Bang about 13 billion years ago.
universities	an institution of higher learning providing facilities for teaching and research and authorized to grant academic degrees
univocal	(of a word or term) having only one possible meaning; unambiguous.
unknown	Not known or familiar. An unknown person or thing.
unknowns	Not known or familiar. An unknown person or thing.
unorthodoxy	the quality or state of being unorthodox
unperson	A person whose name or existence is denied or ignored, especially because of a political misdemeanor.
unquiet	Not inclined to be quiet or inactive; restless.
unreason	Inability to act or think reasonably.
unrepair	Lack of repair; disrepair.
unrest	A state of dissatisfaction, disturbance, and agitation in a group of people, typically involving public demonstrations or disorder.
unseen	Not seen or noticed.
unseens	Not seen or noticed.
untruth	A lie or false statement (often used euphemistically)
untruths	A lie or false statement (often used euphemistically)
unwashed	Not having been washed.
unwell	Sick.
unwisdom	Folly; lack of wisdom.

Una	Undset	Unitarians
unabridged	unacceptableness	unacceptance
unaccountability	unaccountableness	unaccustomedness
unadvisedness	unaffectedness	unalterability
unalterableness	unamiableness	unanimities
unanswerableness	unapprehensiveness	unaptness
unassumingness	unattainableness	unattractiveness
unau	unaus	unauthenticity
unavailability	unavailableness	unavoidability
unavoidableness	unawareness	unbalance
unbalances	unbearableness	unbecomingness
unbeliever	unbelievers	unbendingness
unbirthday	unbirthdays	unblamableness
unblessedness	unboundedness	unbrokenness
uncandidness	uncanniness	unceremoniousness
uncertainness	uncertainties	uncertainty
unchangeability	unchangeableness	uncharitableness
unchasteness	unchastity	uncheerfulness
unciform	uncinus	uncircumcision
uncleanliness	uncleanness	unclearness
uncloudedness	uncomfortableness	uncommonness
uncommunicativeness	uncompromisingness	unconcern
unconcerns	unconditionality	unconditionalness
unconfessed	unconformability	unconformity
uncongeniality	unconscientiousness	unconscionableness
unconscious	unconsciousness	unconstraint
unconventionality	uncourtliness	uncouthness
uncovering	unctuosity	unctuousness
uncus	undauntedness	undemonstrativeness
undeniableness	undenominational	undependableness

underachievement	underachiever	underachievers
underactor	underactors	underagent
underagents	underbellies	underbelly
underbidder	underbidders	underbough
underboughs	underbridge	underbridges
underbrush	underbrushes	underbuilder
underbuilders	undercarriage	undercarriages
undercart	undercasts	undercharge
undercharges	underclassman	underclay
underclothes	underclothing	undercoat
undercoating	undercoats	underconsciousness
undercook	undercooks	undercountenance
undercrest	undercroft	undercrofts
undercurrent	undercurrents	undercuts
underdevelopment	underdogs	underdrain
underdrains	underdress	underdresses
underestimate	underestimates	underestimation
underexposure	underexposures	underfeeds
underfelt	underflows	underfurs
undergarment	undergarments	underglaze
undergrads	undergraduate	undergraduates
undergraduateship	undergraduette	undergraduettes
underground	undergrounds	undergrowth
undergrowths	underhandedness	underking
underkingdom	underkingdoms	underkings
underlayer	underlayers	underlinen
underlinens	underlines	underlings
undermeaning	underminer	underminers
underneath	undernote	undernotes
undernourishment	underpainting	underpants

underpasses	underpayment	underpayments
underpinning	underpinnings	underplots
underrating	underrepresentation	underring
underrun	underruns	underscore
underscores	underseal	underseals
underseller	undersellers	undershirt
undershirts	undershrub	undershrubs
undersides	undersigned	underskies
underskirt	underskirts	undersky
undersleeve	undersleeves	undersoils
understanding	understandings	understatement
understatements	understock	understocks
understrapper	understrappers	understudies
understudy	undersupplies	undersupply
undertaker	undertakers	undertaking
undertakings	undertenancies	undertenancy
undertenant	undertenants	underthrust
undertint	undertints	undertone
undertones	undertows	underutilization
undervaluation	undervaluations	undervest
undervests	underviewer	underviewers
undervoice	undervoices	underwear
underwing	underwings	underwood
underwoods	underworker	underworkers
underworkman	underworld	underwriter
underwriters	undesirability	undesirable
undesirableness	undesirables	undiscipline
undistractedness	undoer	undoers
undoings	undresses	undulation
undulations	undutifulness	undyingness

uneasiness	unemployment	unerringness
unessential	unevenness	unexceptionableness
unexpectedness	unfairness	unfaithfulness
unfamiliarity	unfastening	unfavorableness
unfavourableness	unfeelingness	unfitness
unfixity	unfolder	unfolders
unfolding	unfoldings	unfortunate
unfortunateness	unfortunates	unfriendedness
unfriendliness	ungainliness	ungentility
ungentleness	ungenuineness	ungodliness
ungovernableness	ungracefulness	ungraciousness
ungratefulness	unguardedness	unguiculate
ungula	unhandsomeness	unhappiness
unhealthfulness	unhealthiness	unhingement
unhingements	unholiness	unicycles
unification	unifications	unifier
unifiers	uniformitarian	uniformitarianism
uniformitarians	uniformities	uniformity
uniformness	unilateralism	unilateralist
unilateralists	unilaterality	unimaginableness
unimportance	unintelligibility	unionisation
unionisations	unionists	unionization
unionizations	unipod	unipods
uniqueness	unis	unisexuality
unitarianism	unitedness	unitings
univalence	univalences	universal
universalisation	universalism	universalist
universalists	universalities	universality
universalization	universals	universes
universitarian	universitarians	university

unjustness	unkindliness	unkindness
unknightliness	unknowing	unknowingness
unknownness	unlawfulness	unlikelihood
unlikelihoods	unlikeliness	unlikeness
unlimitedness	unliveliness	unloader
unloaders	unloading	unloadings
unloveliness	unluckiness	unmalleability
unmanageableness	unmanliness	unmannerliness
unmasking	unmeaningness	unmercifulness
unmindfulness	unmorality	unnaturalness
unnecessariness	unneighbourliness	unnilhexium
unnilpentium	unnilquadium	unnilseptium
unobtrusiveness	unoriginality	unorthodoxies
unpacker	unpackers	unpersons
unpitifulness	unpleasantness	unpleasantnesses
unpoliteness	unpopularity	unpracticality
unpredictability	unpreparedness	unpretentiousness
unprettiness	unproductiveness	unproductivity
unprofitability	unprofitableness	unprogressiveness
unpropitiousness	unprosperousness	unprotectedness
unpunctuality	unqualifiedness	unquiets
unraveller	unravellers	unravelment
unravelments	unreadiness	unrealism
unrealities	unreality	unreasonableness
unreconcilableness	unregenerate	unrelentingness
unreliability	unreliableness	unremittingness
unreserve	unreservedness	unresponsiveness
unrestfulness	unrestraint	unrestraints
unrests	unriddler	unriddlers
unrighteousness	unrightfulness	unripeness

unruliness	uns	unsafeness
unsafety	unsalability	unsatisfactoriness
unsaturation	unsavouriness	unscrupulousness
unsearchableness	unseasonableness	unseaworthiness
unseemliness	unselfconsciousness	unselfishness
unsettledness	unsettlement	unsightliness
unskilfulness	unskillfulness	unsnarling
unsociability	unsociableness	unsocialism
unsolidity	unsophisticatedness	unsophistication
unsoundness	unspeakableness	unstableness
unstaidness	unsteadfastness	unsteadiness
unsubstantiality	unsuccess	unsuccessfulness
unsuitability	unsuitableness	unsuppleness
unsuspectedness	unsuspiciousness	untangling
untenability	untenableness	unthankfulness
unthatch	unthatches	unthinkability
unthinkingness	unthoughtfulness	unthriftiness
untidiness	untimeliness	untouchable
untowardness	untractableness	untrustiness
untrustworthiness	untruthfulness	untunableness
untying	unusefulness	unusualness
unveiling	unveilings	unverifiability
unwariness	unwatchfulness	unwholesomeness
unwieldiness	unwillingness	unwiseness
unwit	unwittingness	unwontedness
unworldliness	unworthiness	unyieldingness

113 Nouns Starting With UP

Upanishad	Each of a series of Hindu sacred treatises written in Sanskrit c. 800–200 BC, expounding the Vedas in predominantly mystical and monistic terms.
Upanishads	Each of a series of Hindu sacred treatises written in Sanskrit c. 800–200 BC, expounding the Vedas in predominantly mystical and monistic terms.
Updike	John (Hoyer) 1932–2009 American writer
Uppsala	A city in eastern Sweden; population 190,668 (2008).
up-bow	(on a stringed instrument) a stroke begun with the tip of the bow and proceeding toward the base.
upas	A tropical Asian tree, the milky sap of which has been used as arrow poison and for ritual purposes.
upases	A tropical Asian tree, the milky sap of which has been used as arrow poison and for ritual purposes.
upbeat	(in music) an unaccented beat preceding an accented beat. Cheerful; optimistic.
upbeats	(in music) an unaccented beat preceding an accented beat. Cheerful; optimistic.
upbraiding	Find fault with (someone); scold.
upbringing	The treatment and instruction received by a child from its parents throughout its childhood.
upcast	A shaft through which air leaves a mine. Cast (something) upward.
upcasts	A shaft through which air leaves a mine. Cast (something) upward.
update	Make (something) more modern or up to date. An act of bringing something or someone up to date, or an updated version of something.
updates	Make (something) more modern or up to date. An act of bringing something or someone up to date, or an updated version of something.
updating	Make (something) more modern or up to date. An act of bringing something or someone up to date, or an updated version of something.
upending	Set or turn (something) on its end or upside down.
upgrade	Raise (something) to a higher standard, in particular improve (equipment or machinery) by adding or replacing components. An act of upgrading something.
upgrades	Raise (something) to a higher standard, in particular improve (equipment or machinery) by adding or replacing components. An act of upgrading something.
upgrowth	The process or result of growing upward.
upgrowths	The process or result of growing upward.
upheaval	A violent or sudden change or disruption to something.
upheavals	A violent or sudden change or disruption to something.
uphill	In an ascending direction up a hill or slope. Sloping upward; ascending. An upward slope.
uphills	In an ascending direction up a hill or slope. Sloping upward; ascending. An upward slope.
upholsterers	A person who upholsters furniture, especially professionally.
upkeep	The process of keeping something in good condition.
upland	An area of high or hilly land. A city in southwestern California, east of Los Angeles and north of Ontario; population 72,091 (est. 2008).
uplands	An area of high or hilly land. A city in southwestern California, east of Los Angeles and north of Ontario; population 72,091 (est. 2008).
uplift	Raise the level of; improve. Lift to a higher position. An instance of being raised or increased. Something that makes a person feel more cheerful, positive, or optimistic. Geology often as modifier
uplifting	Inspiring happiness, optimism, or hope.
uplifts	Raise the level of; improve. Lift to a higher position. An instance of being raised or increased. Something that makes a person feel more cheerful, positive, or optimistic. Geology often as modifier
uplink	A communications link to a satellite. Provide (someone) with or send (something) by satellite link.
uplinks	A communications link to a satellite. Provide (someone) with or send (something) by satellite link.
upper	Situated above another part. in place namesGeology Archaeology The part of a boot or shoe above the sole. usually uppers
uppercut	A punch delivered with an upward motion and the arm bent. Hit with an uppercut.
uppercuts	A punch delivered with an upward motion and the arm bent. Hit with an uppercut.
uppers	Situated above another part. in place namesGeology Archaeology The part of a boot or shoe above the sole. usually uppers
upright	(of a person) sitting or standing with the back straight. (of a person or their behavior) strictly honorable or honest. In or into a vertical position. A post or rod fixed vertically, especially as a structural support. An upright piano.
uprightness	The state of being in a vertical position. The condition or quality of being honorable or honest; rectitude.
uprights	(of a person) sitting or standing with the back straight. (of a person or their behavior) strictly honorable or honest. In or into a vertical position. A post or rod fixed vertically, especially as a structural support. An upright piano.
uprise	Rise to a standing or elevated position.
uprises	Rise to a standing or elevated position.
uprising	An act of resistance or rebellion; a revolt.
uprisings	An act of resistance or rebellion; a revolt.
upriver	At or toward a point nearer the source of a river. Situated or occurring at a point nearer the source of a river.
uproar	A loud and impassioned noise or disturbance.
uproars	A loud and impassioned noise or disturbance.
uprush	A sudden upward surge or flow, especially of a feeling.
uprushes	A sudden upward surge or flow, especially of a feeling.
upset	Make (someone) unhappy, disappointed, or worried. Knock (something) over. Cause disorder in (something); disrupt. Shorten and thicken the end or edge of (a metal bar, wheel rim, or other object), especially by hammering or pressure when heated. A state of being unhappy, disappointed, or worried. An unexpected result or situation, especially in a sports competition. A disturbance of a person’s digestive system. predicative(of a person’s stomach) having disturbed digestion, especially because of something eaten.
upsets	Make (someone) unhappy, disappointed, or worried. Knock (something) over. Cause disorder in (something); disrupt. Shorten and thicken the end or edge of (a metal bar, wheel rim, or other object), especially by hammering or pressure when heated. A state of being unhappy, disappointed, or worried. An unexpected result or situation, especially in a sports competition. A disturbance of a person’s digestive system. predicative(of a person’s stomach) having disturbed digestion, especially because of something eaten.
upsetting	Causing unhappiness, disappointment, or worry. The action of knocking something over. The shortening and thickening of the end or edge of a metal bar, wheel rim, or other object, especially by hammering or pressure when heated.
upshot	The final or eventual outcome or conclusion of a discussion, action, or series of events.
upshots	The final or eventual outcome or conclusion of a discussion, action, or series of events.
upside	The positive or favorable aspect of something. An upward movement of stock prices.
upsides	The positive or favorable aspect of something. An upward movement of stock prices.
upsilon	The twentieth letter of the Greek alphabet (Υ, υ), transliterated in the traditional Latin style as ‘y’ (as in cycle) or in the modern style as ‘u’ (as in the etymologies of this dictionary).
upstage	Divert attention from (someone) towards oneself. (of an actor) move towards the back of a stage to make (another actor) face away from the audience. At or towards the back of a stage. Situated or occurring at the back of a stage. informal, dated
upstages	Divert attention from (someone) towards oneself. (of an actor) move towards the back of a stage to make (another actor) face away from the audience. At or towards the back of a stage. Situated or occurring at the back of a stage. informal, dated
upstairs	On or to an upper floor of a building. Situated on an upper floor. An upper floor.
upstart	A person who has risen suddenly to wealth or high position, especially one who behaves arrogantly.
upstarts	A person who has risen suddenly to wealth or high position, especially one who behaves arrogantly.
upstate	Situated or occurring in the northern part of a state, especially the northern part of New York State as contrasted with New York City. In or to the northern part of a state, especially the northern part of New York State as contrasted with New York City. The northern part of a state.
upstroke	A stroke made upward.
upstrokes	A stroke made upward.
upsurge	An upward surge in the strength or quantity of something; an increase.
upsurges	An upward surge in the strength or quantity of something; an increase.
upsweep	Be arranged in an upswept fashion. An upward rise or sweep. An upswept hairdo.
upsweeps	Be arranged in an upswept fashion. An upward rise or sweep. An upswept hairdo.
upswing	An increase in strength or quantity; an upward trend.
upswings	An increase in strength or quantity; an upward trend.
uptake	The action of taking up or making use of something that is available.
uptakes	The action of taking up or making use of something that is available.
upthrow	An upward displacement of a body of rock on one side of a fault.
upthrows	An upward displacement of a body of rock on one side of a fault.
upthrust	Physics Thrust or pointed upward.
upthrusts	Physics Thrust or pointed upward.
uptown	Of, in, or characteristic of the residential area of a city or town. In or into an uptown area. A residential area in a town or city.
uptrend	An upward tendency.
uptrends	An upward tendency.
upturn	An improvement or upward trend, especially in economic conditions or someone’s fortunes. Turn (something) upward or upside down.
upturns	An improvement or upward trend, especially in economic conditions or someone’s fortunes. Turn (something) upward or upside down.

up-and-under	up-and-unders	upbraidings
upbringings	upburst	upgrader
upgraders	upholder	upholders
upholsterer	upholsteries	upholstery
uphroe	uphroes	uplander
uplanders	uplifter	uplifters
upliftings	upper-case	uppishness
uproariousness	uprooter	uprooters
upsettings	upspring	upsprings
uptowner	uptowners	upwardness

125 Words That Start With UR Nouns

Uralic	Relating to or denoting a family of languages spoken from northern Scandinavia to western Siberia, comprising the Finno-Ugric and Samoyedic groups. Relating to the Ural Mountains or the surrounding areas. The Uralic languages collectively.
Urania	The Muse of astronomy.
Uranian	Relating to the planet Uranus. (in science fiction) an imagined inhabitant of Uranus. Relating to heaven; celestial. Homosexual. A gay man.
Uranus	Astronomy Greek Mythology
Urdu	An Indic language closely related to Hindi but written in the Persian script and having many loanwords from Persian and Arabic. It is the official language of Pakistan, and is also widely used in India and elsewhere. Relating to Urdu.
Uri	A string of characters used to identify a resource on a computer network, of which the best known type is the web address or URL.
Uriah	(in the Bible) a Hittite officer in David’s army, whom David, desiring his wife Bathsheba, caused to be killed in battle.
Urtext	An original or the earliest version of a text, to which later versions can be compared.
Uruguay	A country on the Atlantic coast of South America south of Brazil; population 3,400,000 (estimated 2015); official language, Spanish; capital, Montevideo.
uracil	A compound found in living tissue as a constituent base of RNA. In DNA its place is taken by thymine.
uraemia	A raised level in the blood of urea and other nitrogenous waste compounds that are normally eliminated by the kidneys.
uraeus	A representation of a sacred serpent as an emblem of supreme power, worn on the headdresses of ancient Egyptian deities and sovereigns.
uranism	(Male) homosexuality.
uranium	The chemical element of atomic number 92, a dense gray radioactive metal used as a fuel in nuclear reactors.
uranyl	The cation UO₂²⁺, present in some compounds of uranium.
urate	A salt or ester of uric acid.
urates	A salt or ester of uric acid.
urchin	A mischievous young child, especially one who is poorly or raggedly dressed. dialect
urea	A colorless crystalline compound which is the main nitrogenous breakdown product of protein metabolism in mammals and is excreted in urine.
ureide	Any of a group of compounds which are acyl derivatives of urea.
uremia	A raised level in the blood of urea and other nitrogenous waste compounds that are normally eliminated by the kidneys.
ureter	The duct by which urine passes from the kidney to the bladder or cloaca.
ureters	The duct by which urine passes from the kidney to the bladder or cloaca.
urge	Try earnestly or persistently to persuade (someone) to do something. A strong desire or impulse.
urgency	Importance requiring swift action. An earnest and persistent quality; insistence.
urges	Try earnestly or persistently to persuade (someone) to do something. A strong desire or impulse.
urging	Try earnestly or persistently to persuade (someone) to do something. A strong desire or impulse.
urial	A wild sheep with long legs and relatively small horns, native to central Asia.
uridine	A compound formed by partial hydrolysis of RNA. It is a nucleoside containing uracil linked to ribose.
urinal	A bowl or other receptacle, typically attached to a wall in a public restroom, into which men may urinate.
urine	A watery, typically yellowish fluid stored in the bladder and discharged through the urethra. It is one of the body’s chief means of eliminating excess water and salt, and also contains nitrogen compounds such as urea and other waste substances removed from the blood by the kidneys.
urn	A tall, rounded vase with a base, and often a stem, especially one used for storing the ashes of a cremated person. A large metal container with a tap, in which tea or coffee is made and kept hot, or water for making hot drinks is boiled. Place (something) in an urn.
urning	A tall, rounded vase with a base, and often a stem, especially one used for storing the ashes of a cremated person. A large metal container with a tap, in which tea or coffee is made and kept hot, or water for making hot drinks is boiled. Place (something) in an urn.
urns	A tall, rounded vase with a base, and often a stem, especially one used for storing the ashes of a cremated person. A large metal container with a tap, in which tea or coffee is made and kept hot, or water for making hot drinks is boiled. Place (something) in an urn.
urodele	An amphibian of the order Urodela; a newt or salamander.
urology	The branch of medicine and physiology concerned with the function and disorders of the urinary system.
uropod	The sixth and last pair of abdominal appendages of lobsters and related crustaceans, forming part of the tail fan.

Ural	Ural-Altaic	Uriel
Urquhart	Ursa	Ursula
Ursuline	Uruguayan	Uruguayans
uraeuses	uralite	uranalysis
uranide	uranides	uraninite
uranite	uranographer	uranographist
uranographists	uranography	uranology
uranometry	uranyls	urari
uraris	urbaneness	urbanisation
urbanism	urbanite	urbanites
urbanity	urbanization	urchins
urd	urds	uredinium
uredium	uredo	uredosorus
uredosoruses	uredospore	uredospores
urena	urenas	ureteritis
urethan	urethane	urethra
urethras	urethritis	urethroscope
urethroscopy	urgencies	urger
urgers	urgings	urials
urinals	urinalysis	urinaries
urinary	urination	urinations
urnfield	urnfields	urnings
urochord	urochordate	urochordates
urochords	urochrome	urodeles
urolith	uroliths	urologist
urologists	uropods	uropygium
uropygiums	uroscopy	urostyle
urostyles	urtica	urticaria
urticas	urtication	urus
uruses

39 Nouns Beginning With US

Ushant	island of northwestern France in the Atlantic off the tip of Brittany
Usk	river 60 miles (96 kilometers) long in southern Wales and western England flowing east and south into the estuary of the Severn River
Ustinov	city of eastern Russia in Europe population628000
usableness	Usability.
usage	The action of using something or the fact of being used.
usages	The action of using something or the fact of being used.
usance	The time allowed for the payment of foreign bills of exchange, according to law or commercial practice.
usances	usagesense 1a
use	with objectTake or consume (an amount) from a limited supply. used tobe/get used toone could useThe action of using something or the state of being used for a purpose. The value or advantage of something. The habitual consumption of a drug. The characteristic ritual and liturgy of a Christian Church or diocese.
useful	Able to be used for a practical purpose or in several ways.
usefulness	The quality or fact of being useful.
uselessness	Inability to achieve an intended purpose or desired outcome.
user	A person who uses or operates something, especially a computer or other machine. Law
users	A person who uses or operates something, especially a computer or other machine. Law
uses	with objectTake or consume (an amount) from a limited supply. used tobe/get used toone could useThe action of using something or the state of being used for a purpose. The value or advantage of something. The habitual consumption of a drug. The characteristic ritual and liturgy of a Christian Church or diocese.
usher	A person who shows people to their seats, especially in a theater or at a wedding. archaic Show or guide (someone) somewhere. usher something in
usherette	A woman who shows people to their seats in a theater.
usherettes	A woman who shows people to their seats in a theater.
ushers	A person who shows people to their seats, especially in a theater or at a wedding. archaic Show or guide (someone) somewhere. usher something in
using	with objectTake or consume (an amount) from a limited supply. used tobe/get used toone could useThe action of using something or the state of being used for a purpose. The value or advantage of something. The habitual consumption of a drug. The characteristic ritual and liturgy of a Christian Church or diocese.
usnea	any of a genus (Usnea of the family Usneaceae) of widely distributed lichens (such as old-man’s beard) that have a grayish or yellow pendulous freely branched thallus
usneas	any of a genus (Usnea of the family Usneaceae) of widely distributed lichens (such as old-man’s beard) that have a grayish or yellow pendulous freely branched thallus
usquebaugh	Whiskey.
usquebaughs	Whiskey.
ustulation	the action of burning or searing
usual	Habitually or typically occurring or done; customary. the/one’s usual
usualness	accordant with usage, custom, or habit
usuals	Habitually or typically occurring or done; customary. the/one’s usual
usufruct	The right to enjoy the use and advantages of another’s property short of the destruction or waste of its substance.
usufructs	the legal right of using and enjoying the fruits or profits of something belonging to another
usufructuary	one having the usufruct of property
usurer	A person who lends money at unreasonably high rates of interest.
usurers	A person who lends money at unreasonably high rates of interest.
usuriousness	practicing usury
usurpation	to seize and hold (office, place, functions, powers, etc. ) in possession by force or without right
usurpations	to seize and hold (office, place, functions, powers, etc. ) in possession by force or without right
usurper	A person who takes a position of power or importance illegally or by force.
usurpers	A person who takes a position of power or importance illegally or by force.
usury	The illegal action or practice of lending money at unreasonably high rates of interest.

41 Nouns That Start With UT

Utah	A state in the western US; population 2,736,424 (est. 2008); capital, Salt Lake City. The region became part of Mexico in 1821 and was ceded to the US in 1848, becoming the 45th state of the US in 1896.
Ute	A utility vehicle. A member of a North American people living chiefly in Colorado, Utah, and New Mexico. The Uto-Aztecan language of the Ute. Relating to the Ute or their language.
Utes	A utility vehicle. A member of a North American people living chiefly in Colorado, Utah, and New Mexico. The Uto-Aztecan language of the Ute. Relating to the Ute or their language.
Utica	An industrial city in central New York, on the Mohawk River; population 58,082 (est. 2008).
Uto-Aztecan	Relating to the Uto-Aztecan language family. A language family of Central America and western North America including Comanche, Hopi, Nahuatl (the language of the Aztecs), Paiute, Pima, and Shoshone.
Utraquism	the doctrines or practices of the Calixtins
Utraquist	calixtin
Utraquists	calixtin
Utrecht	A city in the central Netherlands, capital of a province of the same name; population 294,737 (2008).
Utrillo	Maurice 1883–1955 French painter
utensil	An implement, container, or other article, especially for household use.
utensils	An implement, container, or other article, especially for household use.
uterus	The organ in the lower body of a woman or female mammal where offspring are conceived and in which they gestate before birth; the womb.
utilisation	The action of making practical and effective use of something.
utilisations	The action of making practical and effective use of something.
utilitarian	Designed to be useful or practical rather than attractive. Philosophy An adherent of utilitarianism.
utilitarianism	The doctrine that actions are right if they are useful or for the benefit of a majority.
utilitarians	Designed to be useful or practical rather than attractive. Philosophy An adherent of utilitarianism.
utilities	The state of being useful, profitable, or beneficial. Computing Useful, especially through being able to perform several functions. Functional rather than attractive. US
utility	The state of being useful, profitable, or beneficial. Computing Useful, especially through being able to perform several functions. Functional rather than attractive. US
utilization	The action of making practical and effective use of something.
utilizations	The action of making practical and effective use of something.
utilizer	to make use of
utilizers	to make use of
utmost	Most extreme; greatest. The greatest or most extreme extent or amount.
utmosts	situated at the farthest or most distant point
utopia	An imagined place or state of things in which everything is perfect.
utopian	Modeled on or aiming for a state in which everything is perfect; idealistic. An idealistic reformer.
utopianism	The belief in or pursuit of a state in which everything is perfect, typically regarded as unrealistic or idealistic.
utopians	Modeled on or aiming for a state in which everything is perfect; idealistic. An idealistic reformer.
utopias	An imagined place or state of things in which everything is perfect.
utricle	A small cell, sac, or bladder-like protuberance in an animal or plant.
utricles	A small cell, sac, or bladder-like protuberance in an animal or plant.
utriculus	A small cell, sac, or bladder-like protuberance in an animal or plant.
utterance	A spoken word, statement, or vocal sound.
utterances	A spoken word, statement, or vocal sound.
utterer	carried to the utmost point or highest degree
utterers	carried to the utmost point or highest degree
uttermost	Furthest, greatest, or most extreme; utmost. the uttermost
utterness	the quality or state of being utter
utu	satisfaction for injuries received (as by retaliation in kind or by payment) in Maori law and custom

15 Nouns Starting With UV, UX, UZ

uvarovite	An emerald green variety of garnet, containing chromium.
uvea	The pigmented layer of the eye, lying beneath the sclera and cornea, and comprising the iris, choroid, and ciliary body.
uveas	The pigmented layer of the eye, lying beneath the sclera and cornea, and comprising the iris, choroid, and ciliary body.
uveitis	Inflammation of the uvea.
uvula	Anatomy
uvular	Phonetics Anatomy A uvular consonant.
uvulas	Anatomy
uvulitis	inflammation of the uvula (as from bacterial or viral infection or allergic reaction) that is marked especially by swelling and redness
Uxbridge	former municipal borough in Middlesex, southeastern England
uxoricide	The killing of one’s wife.
uxoricides	The killing of one’s wife.
uxoriousness	excessively fond of or submissive to a wife
Uzbeg	a member of a Turkic people of Uzbekistan and adjacent regions of central Asia
Uzbek	A member of a Turkic people living mainly in the republic of Uzbekistan and elsewhere in southwestern Asia. The Turkic language of Uzbekistan. Relating to Uzbekistan, the Uzbeks, or their language.
Uzbeks	a member of a Turkic people of Uzbekistan and adjacent regions of central Asia

Conclusion

Nouns that start with U are fairly uncommon, but there are a few of them. Examples include “universe“, “unit“, and “utility“. These nouns all have different meanings, but they share the commonality of beginning with the letter U.

So there you have it, a few examples of nouns that start with U. While there may not be as many of them as there are of other letters, they’re still out there. And who knows, maybe there are even more of them waiting to be discovered.

We hope you enjoyed learning a bit about nouns that start with U. Until next time, take care!

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