Synonyms of vouch

1 Syllable

swears, vow, swear, back

2 Syllables

support, plighting, avow, contend, confirms, sponsor, assert, cosign, avert, profess, witness, reassert, sware, warrant, swore, vowed, confirm, affirm, okay, prove, uphold, affirms, maintain

3 Syllables

professes, certifying, professing, testify, guarantee, rubber-stamp, affirming, confirming, constate, declare, certify, declaring, reasserted, certified, assure, affirmed, reasserting, verify

4 Syllables

allegate, substantiate, predicate

5 Syllables

asseverate, authenticating, corroborate, authenticated, authenticate