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Definitions

open up

VERB
accelerate
Synonyms
STRONGEST
advance expedite further hasten quicken spur step up stimulate
STRONG
drive dust forward gun hurry impel precipitate railroad rev roll tool
WEAK
fire up hammer on lay a patch lay rubber make tracks nail it peel rubber put on afterburners put pedal to metal rev up speed up step on the gas
Antonyms
STRONGEST
block cease check delay discourage halt hinder slow stop
STRONG
dissuade repress wait
WEAK
decelerate defer impede postpone retard slow down
VERB
acknowledge
Synonyms
STRONGEST
accept concede confess declare profess recognize
STRONG
accede acquiesce allow avow crack grant own yield
WEAK
come clean come out of closet cop a plea fess up get off chest let on
Antonyms
STRONGEST
conceal deny disagree disavow dispute hide refuse reject repudiate
STRONG
condemn disallow disapprove protest veto
WEAK
abjure contradict disregard forswear ignore renounce
VERB
admit
Synonyms
STRONGEST
accept affirm agree allow approve concede confirm declare disclose grant indicate permit recognize reveal talk tell
STRONG
accord acquiesce adopt avow bare communicate concur confide consent credit divulge enumerate expose let narrate number own proclaim profess recite relate spill tolerate uncover unveil yield
WEAK
bring to light cop a plea go into details let on make known own up subscribe to
Antonyms
STRONGEST
conceal contradict decline deny disagree disallow disapprove dispute dissent hide invalidate listen misunderstand oppose protest refuse reject repudiate veto
STRONG
argue cover differ disown keep object prevent secrete sell suppress withhold
WEAK
confute debar dismiss eject exclude expel gainsay oust repel shut
VERB
broach
Synonyms
STRONGEST
bring up hint at moot touch on
STRONG
advance approach interject interpose introduce mention move offer propose submit suggest ventilate
WEAK
raise subject speak of talk of
Antonyms
STRONG
close deny dissuade refuse stop take back withdraw
WEAK
close up not mention
VERB
broaden
Synonyms
STRONGEST
augment develop enlarge expand increase widen
STRONG
fatten grow ream spread stretch swell
WEAK
breadthen
Antonyms
STRONGEST
abridge compress decrease diminish lessen lower narrow shrink
STRONG
concentrate
WEAK
restrict
VERB
divulge
Synonyms
STRONGEST
admit blab communicate disclose give away leak publish reveal uncover
STRONG
betray broadcast declare discover exhibit expose gossip impart mouth proclaim promulgate spill spring tattle tell
WEAK
blow the whistle cough up fess up go public let hair down let slip own up spill the beans tip off
Antonyms
STRONGEST
conceal cover hide keep suppress withhold
STRONG
protect
WEAK
secrete
VERB
enlighten
Synonyms
STRONGEST
acquaint advise civilize edify educate inform uplift
STRONG
apprise brief catechize convert counsel direct disclose divulge elucidate guide illume illuminate illumine imitate improve inculcate indoctrinate inspirit instruct persuade preach reveal save school teach tell train update
WEAK
cause to understand give faith give the lowdown give the word let in on put on to
Antonyms
STRONGEST
conceal deceive hide
STRONG
harm hurt keep learn listen misguide mislead neglect obscure secrete suppress
WEAK
be vague bewilder confound confuse delude puzzle
VERB
institute
Synonyms
STRONGEST
appoint come up with create enact establish inaugurate initiate install introduce launch organize set up
STRONG
bow commence constitute fix found induct invest open ordain originate pioneer rev settle start
WEAK
break in bring into being come out with make up set in motion usher in
Antonyms
STRONGEST
close conclude destroy end finish refuse ruin stop
STRONG
complete ignore unsettle
WEAK
cease halt prevent
VERB
introduce
Synonyms
STRONGEST
announce offer open propose recommend submit suggest
STRONG
acquaint advance air broach familiarize harbinger herald moot originate precede preface usher ventilate
WEAK
bring out bring up come out with do the honors fix up get things rolling get-together give introduction kick off knock down lead into lead off pave the way put forward set forth spring with start ball rolling
Antonyms
STRONGEST
conceal deny dissuade hide refuse withhold
STRONG
close close up end finish
WEAK
erase extract subtract take away
VERB
knife
Synonyms
STRONG
brand carve clip cut hurt impale jag kill lacerate lance pierce shank shiv slash slice spit stick thrust wound
WEAK
chop down
Antonyms
STRONG
aid cure heal help
VERB
operate
Synonyms
STRONGEST
explore set
STRONG
amputate cut excise remove transplant treat
WEAK
carve up
VERB
originate
Synonyms
STRONGEST
conceive develop discover evolve found generate hatch initiate invent produce spark spawn
STRONG
cause coin compose form formulate inaugurate innovate institute launch make parent pioneer procreate start
WEAK
break the ice bring about come up with give birth to set in motion set up think up usher in
Antonyms
STRONGEST
cease decrease destroy end halt stop
STRONG
finish kill prevent ruin
WEAK
effect result terminate
VERB
pioneer
Synonyms
STRONG
begin colonize create develop discover establish explore found initiate instigate institute launch originate prepare spearhead start
WEAK
go out in front map out show the way take the lead trailblaze
Antonyms
STRONG
cease complete conclude destroy die end finish halt ignore neglect prevent ruin stop terminate
VERB
profess
Synonyms
STRONGEST
acknowledge admit affirm avow confess feign pretend proclaim stump
STRONG
allege announce asseverate aver avouch certify claim confirm croon depose dissemble fake maintain own predicate purport sing spiel spout state vouch
WEAK
act as if blow hot air come out constate cross heart get off chest get on soapbox make out own up say so soapbox swear on bible swear up and down talk big
Antonyms
STRONGEST
conceal deny disavow disown dispute hide refuse renounce repudiate
STRONG
be quiet contradict invalidate question reject
VERB
release
Synonyms
STRONGEST
clear deliver discharge drop free issue leak surrender
STRONG
absolve acquit commute disengage dispense emancipate exculpate excuse exempt exonerate extricate liberate loose loosen manumit spring unbind unchain undo unfasten unleash unloose untie vent yield
WEAK
bail out cast loose give off give out go easy on let off let off steam let up on set at large set free set loose take out turn loose turn out unfetter unshackle wipe the slate clean
Antonyms
STRONGEST
confine detain hold imprison keep limit restrain retain suppress
STRONG
bind blame charge condemn convict fasten incarcerate incriminate prevent sentence
WEAK
collect gather maintain
VERB
shoot
Synonyms
STRONGEST
blast execute explode fire hit hurl kill launch murder open fire
STRONG
bag barrage bombard catapult dispatch emit expel fling gun ignite loose plug pop project propel pump torpedo trigger zap
WEAK
bring down drop the hammer let fly let go with pick off pull the trigger set off throw lead
Antonyms
STRONGEST
bear create fail
STRONG
conceal hold keep withhold
WEAK
backfire walk
VERB
slash
Synonyms
STRONGEST
hack sever slice slit
STRONG
carve chop gash incise injure lacerate pierce rend rip score wound
Antonyms
STRONGEST
combine unite
STRONG
aid heal mend
WEAK
sew
VERB
stab
Synonyms
STRONGEST
hurt injure jab prick punch stick wound
STRONG
bayonet brand carve chop cleave clip cut drive gore hit jag knife penetrate pierce plow plunge prong ram saber shank sink slice spear thrust transfix
WEAK
run through
Antonyms
STRONGEST
aid assist cure heal help
VERB
strike
Synonyms
STRONGEST
arrive at catch reach seize take
STRONG
achieve attain effect encounter uncover unearth
WEAK
chance upon come across come upon dig up happen upon hit upon lay bare light upon stumble across turn up
VERB
tell
Synonyms
STRONGEST
advise announce confess declare disclose explain express inform instruct mention notify order report reveal say speak state summon
STRONG
acquaint apprise authorize bid command direct divulge enjoin impart leak level proclaim recite represent require utter
WEAK
break the news call upon clue in fill in give facts give out keep posted lay open leave word let in on let know let slip make known put before reel off spit it out
Antonyms
STRONGEST
ask be quiet conceal deny disavow hide keep secret question secrete suppress withhold
STRONG
deceive keep mislead
WEAK
estimate figure guess listen misunderstand
VERB
thaw
Synonyms
STRONGEST
defrost dissolve loosen melt relax soften warm up
STRONG
deliquesce flow flux fuse liquefy mollify relent run unbend
WEAK
become liquid become soft
Antonyms
STRONGEST
coagulate solidify worry
WEAK
freeze
VERB
uncover
Synonyms
STRONGEST
bring to light crack discover divulge expose unearth
STRONG
bare betray break denude display leak open show strike strip subject tap tell unclothe unmask unveil unwrap
WEAK
dig up give away hit upon lay bare lay open make known stumble on tip one's hand
Antonyms
STRONGEST
conceal hide
STRONG
cover secret
WEAK
suppress
VERB
unfurl
Synonyms
STRONGEST
unfold unwind
STRONG
open unpack
WEAK
spread out
Antonyms
WEAK
fold up roll up
VERB
unveil
Synonyms
STRONGEST
disclose display open tell
STRONG
bare betray discover divulge expose show spring unbosom uncover
WEAK
bring to light come out give away lay bare lay open let it all hang out make known make public tip one's hand
Antonyms
STRONGEST
conceal cover hide secrete withhold
STRONG
protect
WEAK
veil
VERB
wound
Synonyms
STRONGEST
damage harm hit hurt injure
STRONG
bruise carve clip contuse cut ding gash irritate lacerate nick pierce scrape scratch slash slice stick total
WEAK
ouch rough up
Antonyms
STRONGEST
aid assist benefit cure fix heal help improve mend
WEAK
appease

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Once institutional firms get used to the format of the markets, they may become more comfortable trading on them—and Kalshi recently received a license from the National Futures Association to open up margin trading.

From Barron's • Apr. 15, 2026

They can open up entirely new treatment pathways that increase quality of life and often generate knowledge that benefits future research well beyond a single company.

From MarketWatch • Apr. 15, 2026

Scott: The opening “Survivor” thing was a contest where people on their different teams open up a platter.

From The Wall Street Journal • Apr. 6, 2026

Through its activities and sports, the group encouraged men to talk and open up, Townsend said.

From BBC • Apr. 3, 2026

We take a short break as we wait for the school to open up, because the custodians are late again.

From "Boy21" by Matthew Quick