Definitions

vouch

[vouch] / vaʊtʃ /

VERB

give assurance

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 stand up 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 use Claude, ChatGPT, and Google’s Gemini every day, and I can vouch for the truth in the Claude warning.

From Barron's • Feb. 6, 2026

Some guys kept to themselves, though it was rare that someone new would show up without having had a member vouch for them.

From Slate • Jan. 27, 2026

What so often matters most these days is the size of an actor’s following or which established person can vouch for them.

From Salon • Jan. 24, 2026

“I came up to her and told her I loved ‘Pink Pony Club,’” Ordman recalled, still a little agog to get that vouch so early in Futch’s existence.

From Los Angeles Times • Oct. 9, 2025

You had to have a sponsor, someone who would say, “I’ll vouch for this person. ”

From "The Color of Water: A Black Man's Tribute to His White Mother" by James McBride

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