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Definitions

stand up for

VERB
assert
Synonyms
STRONGEST
affirm allege argue cite claim contend defend proclaim profess say stress uphold
STRONG
advance asseverate attest aver avouch avow justify predicate press pronounce protest state swear warrant
WEAK
put forward
Antonyms
STRONGEST
deny disavow disclaim negate question refute repudiate
VERB
assist
Synonyms
STRONGEST
aid back benefit boost cooperate expedite facilitate reinforce support sustain take care of
STRONG
abet collaborate further hype plug puff push relieve serve stump thump
WEAK
bail out do for give a boost give a leg up give a lift go down the line for go for go to bat for go with grease the wheels lend a hand make a pitch for open doors put on the map ride shotgun root for run interference for work for work with
Antonyms
STRONGEST
block check delay discourage halt handicap hinder hurt impede injure obstruct prevent stop undermine
STRONG
conceal frustrate hide
WEAK
thwart
VERB
champion
Synonyms
STRONGEST
defend espouse fight for promote uphold
STRONG
back battle contend patronize support
WEAK
go to bat for plead for put in a good word for ride shotgun for side with stand behind thump for
Antonyms
STRONGEST
forsake
STRONG
oppose
WEAK
be against
VERB
contest
Synonyms
STRONGEST
litigate oppose
STRONG
blast debate dispute doubt push question tangle
WEAK
call in question give it one's all go for it go for jugular jockey for position jump on mix it up with object to scramble for shoot for
Antonyms
STRONG
agree go along
WEAK
allow give up resign
VERB
defend
Synonyms
STRONGEST
advocate argue assert back champion endorse explain guarantee justify maintain stand by support uphold
STRONG
aid befriend espouse exculpate exonerate plead rationalize recommend second stonewall sustain vindicate warrant
WEAK
apologize for back up bear one out come to defense of cover for go to bat for prove a case put in a good word ride shotgun for say in defense speak up for stick up for thump for
Antonyms
STRONGEST
oppose protest reject
STRONG
accuse blame condemn
WEAK
abandon attack deny forsake relinquish renounce
VERB
endorse
Synonyms
STRONGEST
advocate affirm approve back commend confirm defend favor okay praise ratify recommend sanction uphold
STRONG
accredit attest authenticate bless boost certify champion countenance guarantee push second sustain underwrite warrant witness
WEAK
back up give a boost to give green light give one's word give the go-ahead give the nod go along with go to bat for go with lend one's name to rubber-stamp stand behind stump for subscribe to vouch for
Antonyms
STRONGEST
attack censure criticize deny disagree disapprove discourage dissuade invalidate oppose refuse reject renounce veto
STRONG
halt
WEAK
protest repel unauthorize
VERB
go to bat for
Synonyms
WEAK
back up cover for defend endorse go to the wall for recommend stand behind stand by stick up for support
VERB
guarantee
Synonyms
STRONGEST
assure ensure insure maintain protect prove secure support
STRONG
affirm angel attest aver back bankroll certify confirm cosign endorse evidence evince grubstake guaranty juice mortgage reassure stake swear testify wager warrant witness
WEAK
answer for be surety for bind oneself get behind give bond make bail make certain make sure pick up the check pick up the tab sign for stand behind vouch for
Antonyms
STRONGEST
harm hurt injure let go neglect
STRONG
contradict deny discourage disprove invalidate oppose refute reject repudiate veto
WEAK
break
VERB
justify
Synonyms
STRONGEST
advocate condone confirm countenance defend explain favor maintain rationalize support sustain uphold validate vindicate warrant
STRONG
absolve acquit alibi approve assert brief claim clear contend crawl establish exculpate excuse exonerate legalize palliate pardon plead rebut square verify
WEAK
answer for apologize for argue for be answerable for bear out cop a plea do justice to make allowances make good show cause speak in favor
Antonyms
STRONGEST
attack condemn contradict deny desert disapprove neglect oppose refuse reject veto
STRONG
accuse blame charge convict damn disagree disprove incriminate invalidate punish sentence
VERB
reinforce
Synonyms
STRONGEST
add to bolster boost build up buttress emphasize enlarge fortify increase shore up stress support underline
STRONG
carry energize harden hype multiply prop stiffen stroke supplement sustain toughen
WEAK
add fuel to fire back up beef up heat up lend a hand pick up pillar prop up punch up soup up
Antonyms
STRONGEST
decrease diminish discourage hinder hurt lessen let down play down prevent reduce undermine weaken
STRONG
liquefy melt soften
WEAK
subtract take away
VERB
speak out/speak up
Synonyms
WEAK
assert come out with declare have one's say insist let voice be heard make oneself heard make plain say loud and clear sound off speak loudly speak one's mind
Antonyms
WEAK
be quiet shut up
VERB
support
Synonyms
STRONGEST
aid approve assist back bolster boost endorse establish help hold justify maintain promote side with uphold
STRONG
abet advance carry champion cheer comfort countenance forward foster second stay substantiate sustain verify
WEAK
agree with bear out boost morale get behind go along with go to bat for keep up plead for pull for put forward rally round stand behind stick by stick up for take one's side take the part of throw in one's lot with throw in with
Antonyms
STRONGEST
block condemn decrease desert disapprove discourage halt hinder hurt injure invalidate obstruct oppose prevent reject stop undermine
STRONG
disprove impede
WEAK
contradict let down let go neglect refuse release
VERB
testify
Synonyms
STRONGEST
announce argue assert declare depose indicate swear
STRONG
affirm attest bespeak betoken certify corroborate demonstrate depone evince mount prove show sing state warrant witness
WEAK
bear witness cross one's heart give evidence give facts give one's word make evident point to say so swear to swear up and down token
Antonyms
STRONGEST
conceal deny hide
STRONG
contradict discredit refute reject veto
VERB
vouch
Synonyms
STRONG
affirm assert asseverate assure avert avow back certify confirm contend corroborate cosign declare guarantee maintain okay predicate profess prove sponsor substantiate support testify uphold verify vow warrant witness
WEAK
act as a witness answer for attest to be responsible for bear testimony get behind give an affidavit put forth rubber-stamp say so sign for swear to swear up and down
Antonyms
STRONG
break condemn contradict deny desert disapprove disavow disclaim discourage discredit disprove invalidate neglect oppose refuse refute reject repudiate veto
WEAK
renounce

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.

“I have to learn to stand up for myself now. I am done being bullied by anyone.”

From The Wall Street Journal • Mar. 15, 2026

"If the government wants to survive it urgently needs to stand up for workers and defend the fundamental values of our movement," she added on X.

From Barron's • Feb. 27, 2026

"Maybe that's the price you pay for speaking up and using your platform but I think it's important to say what you feel and stand up for justice," Kenworthy said.

From BBC • Feb. 9, 2026

Somebody in a Dodgers uniform needs to stand up for that tradition.

From Los Angeles Times • Feb. 6, 2026

If I can’t stand up to my dad about Chris, how can I stand up for Khalil?

From "The Hate U Give" by Angie Thomas