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.

He said he admired Massie's independence and willingness to "stand up for what he believes in".

From BBC • May 18, 2026

"The graffiti will be removed once the investigation is complete. With antisemitism on the rise here and across the globe, we will always stand up for our Jewish community and fight back against hate."

From Barron's • May 4, 2026

All the U.S. needs is for the Gulf Arabs to stand up for themselves.

From The Wall Street Journal • Mar. 20, 2026

Finch said after the surgery she had to lay on her front and was only allowed to stand up for one hour a day.

From BBC • Feb. 23, 2026

Maybe he just hadn’t been brave enough to stand up for me?

From "Before We Were Free" by Julia Alvarez

stand up for

Example Sentences

Related Words