intransitive verb[no object]vouch for
1Assert or confirm as a result of one's own experience that something is true or accurately so described.
attest to, confirm, affirm, verify, swear to, testify to, bear witness to, bear out, back up, support, corroborate, substantiate, prove, uphold, show the truth of, give substance to, give credence to, second, endorse, certify, warrant, validate, give assurance of
- ‘they say New York is the city that never sleeps, and I can certainly vouch for that’
- 1.1Confirm that someone is who they say they are or that they are of good character.
- ‘he was refused entrance until someone could vouch for him’
Middle English (as a legal term in the sense ‘summon a person to court to prove title to property’): from Old French voucher ‘summon’, based on Latin vocare ‘to call’.