under

[(1)below;(2)belowthesurfaceof;(3)lessthan;(4)ascalledforbya

law,agreementorsystem]

Theriverflowsunderthebridge.(1)

Thesubmarinewentunder.(2)

Thebookwasunder20dollars.(3)

Suchactionisnotpermittedunderthelaw.(4)

understand

[(1)toknowwhatismeant;(2)tohaveknowledgeof]

Iunderstandwhatyoumean.(1)

Heunderstandschemistry.(2)

unite

[tojointogether]

Thenewpresidentwilltrytouniteallpartiesinsupportofhisprogram.

universe

[allofspace,includingplanetsandstars]

Doyouknowwhytheuniverseisexpanding?

university

[aplaceofeducationthatusuallyincludesseveralcollegesandresearch

organizations]

Hersonsarestudentsatdifferentuniversities.

unless

[(1)exceptifithappens;(2)onconditionthat]

Iwillnotgo,unlesstherainstops.(1)

Iwillcometoyourhouseunlessitrains.(2)

until

[(1)uptoatime;(2)before]

Shesaidshewouldwaitformeuntilthreeo’clock.(1)

Wecannotstartuntileveryonearrives.(2)

up

[to,inoratahigherpositionorvalue]

Wewillwalkupthestairs.

urge

[(1)toadvisestrongly;(2)tomakeagreatefforttogetsomeonetodo

something]

Heurgedthegovernortothinkcarefullybeforesigningsuchabill.(1)

Thespeakerurgedthecrowdtotakecontroloftheuniversity.(2)

urgent

[needinganimmediatedecisionoraction]

Shesaidurgentactionisnecessary.

us

[(1)theformoftheword"we"usedafterapreposition;(2)orusedasan

objectofaverb]

Hesaidhewouldwritetous.(1)

Theysawusyesterday.(2)

use

[(1)toemployforapurpose;(2)toputintoaction]

Weuseelectricitytolightourhouse.(1)

Heusedapieceofglasstocuttheropesthattiedourhands.(2)

usual

[(1)asisnormalorcommon;(2)asismostoftendone,seenorheard]

Theywatchedalltheusualtelevisionshows.(1)

Weleftforworkatourusualtime.(2)