Other Ending Letters

Word Lengths Starting With U

All 583 Matching Words

uberSuper; high-level; high-ranking.uberbloggerA prominent and/or prolific blogger.ubiquiter(nonstandard, rare) Ubiquitous, widespread.ucker(MLE) A person who performs fellatio.udaler(Shetland, Orkney) One who holds property by udal, or allodial, right.udallerOne who holds property by udal, or allodial, right.udderAn organ formed of the mammary glands of female quadruped mammals, particularly ruminants such as cattle, goats, sheep and deer.ugger(slang) An ugly person.ugliercomparative form of ugly: more uglyuglifierOne who or that which uglifies.uitlander(South Africa) A foreigner; outlander.ulcer(pathology) Peptic ulcer.ulceroglandularBeing the glandular form of a disease and accompanied by an ulcer.ulnarOf or pertaining to the ulna, or the elbowulnocondylar(anatomy) Relating to the ulna and condyle.ulnotrochlear(anatomy) Relating to, or connecting the ulna and a trochleaulnovolar(anatomy) Relating to the ulna and the palm of the handulster(clothing, men's attire) A long, loose overcoat made of wool or other rough material, often called a greatcoat, which sometimes features an attached shoulder cape covering the back and sleeves, and which can sometimes be buttoned in front.ulteriorSituated beyond, or on the farther side.ulteriourObsolete spelling of ulterior.ultracapacitorA supercapacitor.ultracellularDescribing ultramicroscopic cellular featuresultracleverExtremely clever.ultracondenserThe optical condenser of an ultramicroscopeultrafamiliarextremely familiar; particularly familiarultrafilterA device that performs ultrafiltration.ultrafreezerA freezer that operates at a very low temperatureultralinearExtremely linear.ultramarathoner(athletics) Someone who participates in ultramarathons.ultramer(biochemistry) Any of a class of synthetic DNA sequencesultramicrometerA very precise micrometer.ultramicrospectrophotometerA spectrophotometer equipped with an ultramicroscopeultramolecular(homeopathy) So highly diluted as not to contain a single molecule of the active substance.ultrapeer(computing) In a peer-to-peer network, a peer capable of routing requests and responses from others rather than always adopting a direct client-server connection.ultrapoor(sociology) Exceptionally poor; in a state of dire poverty.ultrapower(mathematics) The special case of an ultraproduct where all factors are equal.ultrarunnerA runner in an ultramarathon.ultrasheerExtremely sheer.ultrasonicatorA device for performing ultrasonication.ultrasonographerA person who performs ultrasonography: a sonographic technician, an expert in ultrasonography, or both coinstantiated.ultrasonometerA device that uses ultrasound to image osteoporosisultrasparsifier(graph theory) A form of sparsifier that makes a graph particularly sparse.ultrastellarBeyond the stars.ultratenderExtremely tender.umbellarOf, pertaining to, bearing or having the form of an umbel.umbellaster(botany) A group of flowers arising from one point.umbelliferAny plant of the family Apiaceae, also called Umbelliferae, whose inflorescence is an umbel, such as a carrot or celery.umberA brown clay, somewhat darker than ochre, which contains iron and manganese oxides.umbilicularAlternative form of umbilical.umbracularHaving or relating to an umbraculum.umbrellarRelating to an umbrella (of a jellyfish)umifenovir(pharmacology) An antiviral agent that inhibits the fusion of a virus with the host cell.umpirer(obsolete) An umpire.unalterTo reverse a previous alterationunanchor(transitive) To raise an anchor or to free a vessel from an anchor.unarchiver(computing) A program or algorithm that unarchives.unassembler(computing) Synonym of disassembler.unavuncularNot avuncular; not befitting or characteristic of an uncle.unbagger(rare) A machine that removes items from bags.unbar(transitive) To unlock or unbolt a door that had been locked or bolted with a bar.unbear(transitive) To remove or loose the bearing rein of (a horse).unbelieverOne who does not believe, particularly in a deity (used by believers to describe people who do not believe in the same deity or deities as themselves).unbewilder(transitive) To free from bewilderment; to enlighten or unconfuse.unbewitcherOne who removes an enchantment.unbinderThat which unbinds.unblockerOne who, or that which, unblocks.unblur(transitive) To remove blurring from (an image).unbolster(transitive) To remove the support from.unborder(transitive, rare) To remove a border or borders from.unbosomer(archaic) One who unbosoms, or discloses.unboxerOne who removes things from boxes.unbrother(transitive) To make no longer a brother; to expel from a brotherhood.unbuffer(computing, transitive) To release or flush from a buffer.unbundlerOne who unbundles.unburdenerOne who unburdens.uncandorA lack of candor.uncandourLack of candour.uncapperOne who, or that which, removes a cap or lid.uncensor(transitive) To undo the censorship of (a work) by restoring what was censored.uncenterAlternative form of uncentre.unchainerOne who unchains.unchair(figurative, transitive) To take away someone's status and authority, especially if that status and authority is represented by a chair such as a throne or an academic chair; unseat.unchamber(transitive) To remove (especially a bullet) from a chamber.uncipher(obsolete, transitive) To decode or decipher.uncleanercomparative form of unclean: more uncleanunclearAmbiguous; liable to more than one interpretation.unclefucker(vulgar) A term of abuse, variant of motherfucker.unclipperOne who, or that which, unclips.uncloggerA tool or chemical for unclogging a drain, a gutter, etc.uncloisterTo release from a cloister, or from confinement or seclusion; to liberate; to free.uncluster(transitive) To remove or separate from a cluster; to take apart or disperse.unclutter(transitive) To eliminate clutter from.uncollar(transitive) To remove a collar from.uncolor(transitive) To remove the color from.uncolourAlternative form of uncolor.uncorkerOne who uncorks.uncouplerAnything that uncouples.uncoverTo remove a cover from.uncovererAgent noun of uncover; one who uncovers.uncular(archaic) Relating to an uncle.uncumber(rare) To disencumber.uncypherAlternative form of uncipher.undecamer(chemistry) An oligomer having eleven subunits.undeceiverOne who undeceives.undecemvirMisspelling of undecimvir.undecimvir(historical, uncommon) Any member of a group of eleven officials.undecipher(transitive, rare) To decipher.undeleter(computing) A program that undeletes.underBeneath; below; at or to the bottom of, or the area covered or surmounted by.underachieverOne who underachieves, i.e. performs less well than expected.underactorA secondary or subsidiary actor.underagerA person who is underage.underbarA bar placed under a symbol.underbearTo support, endure.underbearerOne who helps to bear or carry the corpse or accessories at a funeral.underbidderThe last person to drop out of an auction; the second-highest bidder.underbuilderA subordinate or assistant builder.underbutlerA subordinate or assistant butler.undercar(often attributive) The underside or undercarriage of a car.undercarterA subordinate carter.undercellarA lower cellar.underchamberA lower chamber; a room that lies beneath.underchancellorA subordinate chancellor.underclasserA member of an underclassundercoaterPaint or other primer to be applied to a surface as an undercoat.undercollar(textiles) Part of a garment that goes under the collar.undercollectorA subordinate collector (of taxes or similar).undercolorAlternative form of undercolour.undercolourA colour used as a base and then coloured over, as in watercolour painting.undercommanderA subordinate commander.underconsumerOne who consumes too little of something.undercookerOne who undercooks.undercooperA subordinate cooper.undercounterBeneath a counter.undercoverPerformed or happening in secret.undercutterOne who, or that which, undercuts.underdamper(music) A damper located beneath the hammers in a piano.underdeliverTo deliver less, or at an inferior level, than promised or expectedunderdelivererOne who underdelivers.underdoerOne who underdoes something.underdrainerSynonym of underdrainunderearnerOne who earns too little.undereaterOne who eats too little.underestimatorOne who underestimates.underfalconerA subordinate falconer.underfarmerAn assistant farmer.underfeeder(engineering) A device that feeds in material from below.underfilter(signal processing) A morphological filter (idempotent operator) whose image is a subset of the domain.underflavorAlternative form of underflavour.underflavourSynonym of undertaste.underfloorLocated beneath the floor.underfunctionerOne who underfunctions.underfunderOne who underfunds something.underfurThe thick, soft undercoat of some mammals, especially those that spend time in the waterundergamekeeperA subordinate gamekeeper.undergaoler(Commonwealth) Dated spelling of underjailer.undergardenerAn assistant gardener.undergear(uncommon) UnderwearundergoerOne that undergoes.undergovernorA subordinate governor.undergrounderAn underground publication or movie.underhair(collectively) undercoat, underfurunderhammer(firearms) A firing mechanism where the hammer is mounted under the frame, behind the barrels, and forward of the trigger.underhanderA ball thrown or bowled underhand.underinvestorOne who underinvests.underjailerA subordinate jailer.underjanitorA subordinate janitor.underkeeper(obsolete) A subordinate keeper or guardian.underlaborerAlternative form of underlabourer.underlabourerAn assistant or subordinate labourer.underlaughterSuppressed laughter or laughingunderlawyerA subordinate lawyer.underlayerA layer that is below another layer.underleaser(property law, informal) Synonym of sublessor.underlessor(property law) Synonym of sublessor.underletter(property law) Synonym of sublessor.underleverA lever behind the trigger guard of a rifleunderlierThat which underlies.underlinerOne who underlines.underlooker(mining, historical) A daily inspector of a mine.undermanagerA manager who is lower in the organizational hierarchy than another manager.undermasterAn assistant master; a subordinate to the main master.undermediatorA subordinate mediator.undermillerA subordinate miller.underminerOne who undermines.underministerA minister who is subordinate to another.undermuscularSynonym of undermuscled.underofficerA subordinate officer.underorder(ambitransitive) To order too little or too few.underpackerA person who underpacks.underpair(poker) A pocket pair of a lower rank than all of the community cards on the board.underpayerOne who underpays.underpeer(archaic) To look beneath something.underperformerOne who or that which underperforms, having performance that is below average or below expectations; often specifically a company or stockunderpinnerOne who, or that which, underpins.underporterA subordinate porter.underpourTo pour an inadequate amount.underpower(transitive) To supply with insufficient power.underpredictorOne who underpredicts.underproducerSomething that, or someone who underproducesunderprompterA subordinate prompter.underpropperOne who, or that which, underprops or supports.underpuller(obsolete) An assistant or underling.underrangerA subordinate ranger.underraterOne who gives too low a rating.underreactorOne who underreacts.underreaderOne who underreads.underreporterOne who underreports something.underresponderOne who underresponds.underrunnerThe lower of a pair of grinding millstones.undersaverOne who undersaves.undersawyerA sawyer who works in a sawpit, underneath the wood being sawn.underscorerOne who achieves an unsatisfactorily low score on a test, etc.undersellerOne who undersells.undersetterOne who, or that which, undersets or supports; a prop; a support; a pedestal.undershooterOne who undershoots.undersignerOne who undersigns.underskinker(obsolete or historical) An assistant barperson or tavern worker.underspenderOne who underspends.understairBeneath a flight of stairs.understanderOne who understands something.understaterA person who understatesundersteerThe action of a car when it does not follow the desired curve while cornering. Tyre slip of the front wheels.understir(transitive) To stir too little.understrapperAny underling or inferior in office.undersupervisorA subordinate supervisor.undertakerA funeral director; someone whose business is to manage funerals, burials and cremations.underteacher(dated) A lower-ranking teacher; an assistant teacher.underteller(dated) A lower-ranking teller, or bank clerk.underthinkerOne who underthinks.undertreasurerAn assistant treasurer.undertutorA subordinate tutor.underuserOne who underuses.underusherA subordinate usher.undervaluerOne who undervalues.undervicarA subordinate vicar.underviewer(mining, historical) An underlooker; the manager responsible for a colliery in the absence of the viewer.undervoterOne who undervotes.underwater(not comparable) Beneath the surface of the water; of or pertaining to the region beneath the water surface.underwearClothes worn next to the skin, underneath outer clothing.underworkerAn inferior or subordinate workman.underworlderSomeone who inhabits or comes from an underworld.underwriterAn entity assuming a financial risk.undeserverSomeone who is not worthy.undiaper(transitive) To remove the diaper from.undiscover(transitive) To forget or revoke the discovery of (something discovered earlier).undoctor(transitive) To divest of the character or status of a doctor.undocuqueerQueer and having the status of an undocumented immigrant.undoerAgent noun of undo; one who undoes.undresserOne who undresses.undularHaving the form of a moving waveundulator(physics) A periodic structure of dipole magnets that generates a low-energy collimated beam of radiation.uneartherOne who unearths something.uneasiercomparative form of uneasy: more uneasyunencumber(transitive) To free from incumbrance.unentanglerOne who unentangles.unequiangularNot equiangular.uneraser(computing) A program that unerases.unevenercomparative form of uneven: more unevenunfamiliarStrange, not familiar.unfastenerOne who or that which unfastens.unfatherA man who is not a father.unfavor(rare, nonstandard) Absence or lack of favor.unfavourAlternative form of unfavor.unfearAbsence of fear; fearlessness.unfeatherTo strip of feathers.unfetter(transitive) To release from fetters; to unchain; to let loose; to free.unfilter(transitive) To undo the filtering of (data, etc.), or remove a filter from.unflatter(transitive) To show or display in a bad light; to portray unfavorably.unflower(transitive) To strip the flowers from.unfolderOne who, or that which, unfolds.unfollower(Internet) One who unfollows another user.unforgiverOne who does not forgive.unfrienderOne who unfriends somebody.unfur(transitive) To remove fur from.ungarterTo remove the garter or garters from.ungear(transitive) To strip of gear; to unharness.ungender(transitive) To remove or reverse the gender of.unglandularNot glandular.unguicularOf or pertaining to a claw or nail; ungual.unguitractor(anatomy) A muscle that flexes the unguis, or claw.ungular(anatomy) Of or pertaining to a hoof, claw, or talon.unhair(transitive) To remove hair from (something), especially from hide.unhairerA person employed to remove the hair from animal skins.unhalter(transitive) To remove a halter from (an animal).unhamper(transitive) To free from hindrances.unharborAlternative form of unharbour.unharbour(transitive) To drive from harbour or shelter.unhealthiercomparative form of unhealthy: more unhealthyunhear(transitive) To reverse the process of hearing, so that (a sound, etc.) was never heard.unhinder(transitive) To remove a hindrance from; to free or unencumber.unholiercomparative form of unholy: more unholyunholster(transitive) To remove (a weapon) from its holster.unhonorAlternative form of unhonour.unhonourThe lack or absence of honour; dishonour.unhookerOne who or that which unhooks.uniangularHaving or involving a single angle.uniarticular(anatomy) Describing a muscle that controls the movement of a single jointuniballer(slang) A man with only one testicle; a monorchid.unicapsular(archaic, botany) Having only one capsule to each flower.unicellular(biology) Describing any microorganism that has a single cell.uniceptorA receptor that has only a haptophore group or a haptophore and a zymophore group, but no complementophile group.unicolor(American spelling) Of one color; monochromatic.unicolour(British spelling) Alternative form of unicolor.unicondylarHaving a single condyleunier(cycling, informal) Synonym of unicyclist.unifascicularInvolving a single fascicle.unificatorOne who unifies or unites.unifierAgent noun of unify; one who unifies.unifilarHaving or using only one threadunifiliarComposed of a single electric wireuniflagellar(biology) Uniflagellate.unifoliar(botany) Having a single leaf.unifollicularComposed of a single follicle.uniformizer(commutative algebra) A uniformizing parameter.uniglandularOf or relating to a single gland.uniglobularConsisting of a single globular part.uniglomerularHaving a single glomerulusunilacunarInvolving only one lacuna.unilamellar(biology) Having a single layer or lamella.unilaminarConsisting of a single layer.unilinearMade up of one single line.unilobarConsisting of a single lobe.unilobularHaving or involving a single lobe or lobule.unilocularHaving a single locule or loculus (chamber, cell, or compartment).unimacularRelating to a single macula.unimer(chemistry) monomerunimodular(mathematics, of a lattice or matrix) Having a determinant of 1 or -1.unimolar(chemistry) Having a molarity of one mole per litreunimolecular(chemistry, physics, of a reaction) involving a single moleculeunimuscular(anatomy) Having only one adductor muscle, and one muscular impression on each valve.uninodularHaving a single nodule.uninstaller(computing) A program that uninstalls software.uninuclearOf or relating to a single nucleus.uniocularOf, pertaining to, or located in one eye.unionbusterA person employed to prevent the formation or expansion of trade unions.unioneerA trade unionist.unioniserAlternative form of unionizer.unionizerOne who unionizes.uniovularRelating to a single ovule.uniparSynonym of unipara.uniparameter(mathematics) Having, or defined using a single parameterunipedicularOf or pertaining to a single pedicle.uniplanarHaving, or lying in, a single planeunipolarHaving a single pole.uniporter(biochemistry) An integral membrane protein that transports a single moleculeuniprocessor(computing) A single processor (CPU) that can work sequentially on a single task at a time.uniradicularHaving a single root or radicleuniselectorA type of stepping switch able to select on only one axis, formerly widely used in telephone exchanges.unispicularHaving a single spicule.unitaskerA person who does a single thing at a time.unitentacularHaving or relating to a single tentacle.uniterAgent noun of unite; one who unites.unitholder(finance) An owner of a beneficial interest ("unit") in a financial entity such as an investment trust.unitigger(genetics) A device that assembles unitigs.unititular(law) Owned by a single person or company.unitizerOne who unitizes.unitriangular(mathematics) Of a matrix: such that the entries on the main diagonal of a (upper or lower) triangular matrix are all 1.unitubularConstructed from a single tubeunivacuolarHaving, or concerning a single vacuoleunivalvular(botany, zoology) Having only one valve.univascularRelating to, or affecting a single blood vesseluniventricularHaving a single ventricle.universalizerOne who universalizes.univesicularHaving or involving a single vesicle.unjocular(rare) Not jocular; without good humour.unkindliercomparative form of unkindly: more unkindlyunkosher(somewhat informal, chiefly Judaism) Not kosher.unlatcherOne who or that which unlatches.unlearnerOne who unlearns something.unleasherOne who unleashes.unlikeliercomparative form of unlikely: more unlikelyunlimberTo clumsily put into employ (a large weapon or object).unlinker(computing) A program or process that unlinks.unloaderOne who or that which unloads.unlockerOne who, or that which, unlocks.unlooper(electronics) A device used to break a smart card's microcontroller out of an infinite loop state that makes it otherwise unusable.unlooserOne who unlooses.unluckiercomparative form of unlucky: more unluckyunmakerOne who, or that which, unmakes; a destroyer.unmanliercomparative form of unmanly: more unmanlyunmaskerOne who unmasks.unmember(transitive) To deprive of membership, as for example in a church.unmiterAlternative form of unmitre.unmoor(transitive) To unfix or unsecure (a moored boat).unmotherA woman who is not a mother.unmurder(rare, transitive) To bring (somebody murdered) back to life.unmuscularNot muscular; weak, puny, wimpy.unnerverOne who unnerves.unocularAlternative form of uniocular.unorder(transitive) To cancel an order for.unpackagerOne who, or that which, unpackages.unpackerOne who, or that which, unpacks.unpair(ambitransitive) To change from a paired to a non-paired state.unpaper(transitive) To remove curling papers from (the hair).unparser(computing) A program or algorithm that unparses.unparticularNot particular.unperpendicularNot perpendicular.unpickerOne who, or that which, unpicks.unplaster(transitive) To remove the plaster from.unpluggerOne who, or that which, unplugs.unpopularLacking popularity.unpowerLack of power; weakness.unproper(now rare) Improper, not suited for its use or application; inappropriate.unprotectorSomething that removes protection.unpucker(ambitransitive) To smooth away the puckers or wrinkles (of); to relax or unclench.unrar(transitive, computing) To decompress (a compressed archive in the RAR format).unravelerOne who, or that which, unravels.unravellerAlternative form of unraveler.unrectangularNot rectangular.unreelerA device for unreeling something, such as a cable.unregister(transitive) To undo the process of registration for.unregularNot regular; irregular, uncommonunrelentor(poetic, archaic, rare) One who does not relent.unremember(transitive) To fail to remember; to lose the memory or remembrance of; to forget.unrepairAn unsound state, as that of a building; dilapidation.unriddlerOne who unriddles; a solver of puzzles.unrollerA person or machine that unrolls something.unscepterAlternative form of unsceptre.unscissorTo become uncrossed or separate, like a pair of scissors openingunscramblerThat which unscrambles; a device for decoding a scrambled signal.unscrewerOne who, or that which, unscrews; a device for unscrewing.unsealerOne who unseals something.unseaterSomeone who unseats (in various senses).unsexiercomparative form of unsexy: more unsexyunshatter(ambitransitive) To reverse the process of shattering; to unbreak.unshoulder(transitive) To remove (a burden) from one's shoulder.unshutter(transitive) To open or remove the shutters of.unsiker(obsolete) Unsafe, insecure.unsister(transitive, poetic, obsolete) To separate, as sisters; to disjoin.unsmotherTo release from smothering.unsolderTo reverse the process of soldering, such as by breaking the joint and removing the solderunsomberAlternative form of unsombre.unsoundercomparative form of unsound: more unsoundunsour(transitive) To remove the sourness from; to make no longer sour.unspar(transitive) To take the spars, stakes, bolts or bars from.unspectacularNot spectacular.unspoiler(Internet, transitive) To bypass the spoiler warning on (a message) so as to view the contents.unstablercomparative form of unstable: more unstableunstackerA person or machine that unstacks something.unstar(transitive) To remove a star from.unsteadiercomparative form of unsteady: more unsteadyunstir(ambitransitive) Hypothetically, to undo the act of stirring or being stirred.unstopper(transitive) To remove the stopper from.unsubscriberOne who unsubscribes.unsurrenderTo retract the act of surrendering.unswearTo recall a previously sworn oath.unsympathizerOne who is unsympathetic.untanglerOne who untangles.untar(computing, transitive) To extract from a tar archive.unteacher(derogatory) A popular teacher who focuses on fun activities but lacks pedagogical rigor.untemper(transitive, metallurgy) To deprive of temperuntenderNot soft; harsh.unterfirer(Judaism) One who escorts the bride or groom to the chuppah; typically a parent.untether(transitive) To undo by removing a tether.unthinkerSomeone who does not think, or does not think wisely.untierOne who unties.untrusser(obsolete) Someone who untrussed persons for the purpose of flogging them; a public whipper.untrutherAn untruthful person; a liar.untwisterOne who or that which untwists.unveilerOne who unveils something.unvernacularNot vernacular.unvicar(transitive, rare) To deprive of the position or office of a vicar.unvisorTo remove or lift a visor from one's face.unvizorAlternative form of unvisor.unvolunteer(intransitive) To withdraw from volunteering; to revoke one's own voluntary status.unwater(transitive) To remove water from.unweather(transitive) To undo or reverse the effects of weatheringunwieldier(archaic) comparative form of unwieldy: more unwieldyunwinderA device that unwinds.unwisercomparative form of unwise: more unwiseunwonder(transitive) To divest of wonder or mystery, as by interpreting or explaining.unworldliercomparative form of unworldly: more unworldlyunworthiercomparative form of unworthy: more unworthyunwrapperOne who unwraps something.unzipper(transitive) To unzip.upalator(humorous, informal, rare) An escalator going upwards.upbar(transitive, rare) To fasten with a bar.upbear(dated, transitive) To hold up; raise aloft; hold or sustain highupbearerOne who upbears or upholds.upbraiderOne who upbraids.upcheer(transitive, archaic) To cheer up.upcomerEggcorn of up-and-comer.upconverterA device or software that upconverts.upcyclerOne who upcycles.updaterOne who, or that which, updates.upenderOne who upends something.upfitterA person or organisation that upfits or upgrades something.upflicker(poetic) To flicker upward.upfloor(architecture) An upper storey, especially a gallery or arcade above the arches of the nave, choir, and transepts of a church.upflower(intransitive, poetic, archaic) To flower; to reach a state of full development or achievement.upgather(obsolete) To gather up; to contract; to draw together.upgear(ambitransitive, automotive) To shift to a higher gearupgraderOne who, or that which, upgrades.upheaverOne who upheaves.uphillerA person traveling uphill.upholderSomeone who upholds something.upholdsterAlternative form of upholster (noun).upholster(transitive) To fit padding, stuffing, springs, webbing and fabric covering to (furniture).upholstererOne who upholsters furniture, especially a trained craftsman who does so as an occupation.uplanderA person from the uplands.uplifterOne who, or that which, uplifts.uplighterSynonym of uplight.uploaderSomeone who uploads files.uplookerOne who gazes upward.upmaker(printing) A person employed to make up galley proofs in page mode.upperAt a higher physical position, level, rank or order.uppercarder(professional wrestling) A wrestler who performs in the uppercarduppercrusterA member of the upper crust; a social elite.uppererOne who fits the uppers to shoes.upquiver(poetic) To quiver upward.upraiserOne who upraises something.upregulatorA regulator that involves upregulationupriserOne who takes part in an uprising.upriverTowards the source of a river.uproarTumultuous, noisy excitement.uprooterOne who, or that which, uproots.upsamplerA process or algorithm that upsamples.upscalerSomeone or something which upscales.upscatterAn upward scatter.upsetterOne who upsets (something); a disrupter.upshifter(engineering) A process, algorithm, etc. that shifts something to a higher level or frequency.upsizerOne who, or that which, upsizes.upskirterA person who takes upskirt photographs or video footage.upslur(music) A slur in which the pitch of the note rises.upsoar(literary, archaic) To soar upward.upspeakerOne who speaks up; an advocate.upspear(archaic, poetic, intransitive) To rise or point upward like spears.upstagerOne who upstages.upstair(dated) upstairsupstanderA person who stands up for something, as contrasted to a bystander who remains inactive.upstaterA person from upstate; usually specifically a person from upstate New York.upstirCommotion; disturbance, tumult.upstreamerA person who lives upstream.uptalker(linguistics) One who uptalks.uptear(transitive, archaic or poetic) To tear up (wrench from the ground).upter(Australia, colloquial) Useless, no good.upthunder(poetic, archaic, intransitive) To send up a noise like thunder.uptower(transitive, poetic) To tower above; to loom.uptownerA person who comes from uptown.upvoter(Internet, Reddit) One who upvotes.upwhirr(intransitive, rare) To rise with a whirring sound.urExpressing hesitation or inarticulacy; er, um.uranographerOne who carries out uranography.urbanercomparative form of urbane: more urbaneurbaniserAlternative form of urbanizer.urbanizerOne who develops a place into a city.urbexerA person who explores man-made structures, often as a hobby; a person who participates in urban exploration.ureameter(historical, medicine) An apparatus for measuring the amount of urea in urine, based on the amount of nitrogen produced in certain reactions.ureter(anatomy) Either of the two long, narrow ducts that carry urine from the kidneys to the urinary bladder.urinaterAlternative spelling of urinator (“a person who urinates”).urinatorA person who urinates.urinometerA hydrometer used to measure the specific gravity of urine.urlar(music) The base theme of a piece of classical bagpipe music.uroflometerAlternative form of uroflowmeter.uroflowmeterA device that measures the flow of urine.urometerAn areometer for measuring the specific gravity of urine.urostylarRelating to the urostyle.usageaster(rare, derogatory) A self-appointed authority on language usage.usager(obsolete) One who has the use of anything held in trust for another.userOne who uses or makes use of something, a consumer or client or an express or implied licensee (free user) or a trespasser.usewearwear (on a tool etc) caused by normal useusherA person, in a church, cinema etc., who escorts people to their seats.ushererOne who ushers in something.usucaptorOne who acquires something by usucaption.usurerA person who loans money to others and charges interest, particularly at an exorbitant, exploitative, or illegal rate.usurperOne who usurps.usurporObsolete form of usurper.utiliserOne who utilises.utilizerOne who utilizes.utopianiserAlternative form of utopianizer.utopianizerOne who promotes or believes in the idea of a utopia.utopographerOne who describes a utopia.utricularOf, pertaining to, or having utriclesutriculoampullar(anatomy) Relating to the utricle and ampulla of the ear.utriculosaccular(anatomy) Relating to utricles and to saccules.utterTo the furthest or most extreme extent; absolute, complete, total, unconditional.utterbarristerObsolete form of utter barrister.uttererOne who utters something.uvaserAn ultraviolet laser.uveovascular(anatomy) Relating to the vessels of the uveauvular(anatomy) Of or relating to the uvula.uvver(dialect, nonstandard) other