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.

Former England scrum-half Danny Care played in all five of England's fixtures in that campaign and can vouch for how transformative confidence – or the lack of it – can be.

From BBC • Mar. 10, 2026

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

We’ll also see the emergence of more labels like the “Organic Literature” certification, which intends to verify and vouch for human authorship.

From The Wall Street Journal • Dec. 23, 2025

In any case, he's well enough, though I won't vouch for his vigor.

From "A Clash of Kings" by George R.R. Martin

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