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

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 was not the only new “recruit”—there was David, in plaid pants, plus two friends of an existing member, who needed no introduction, as they had someone to vouch for them.

From Slate • Oct. 27, 2025

Speaking both from experience and the literature, I can vouch for the heeler’s intelligence.

From Los Angeles Times • Jul. 22, 2025

“I was there at his birth. I can vouch for him” said Scheer.

From "Middlesex: A Novel" by Jeffrey Eugenides

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