Synonyms of 'avouch'

acknowledge, admit, affirm, allege, announce, annunciate, argue, assert, asseverate, assure, attest, aver, avow, certify, confess, confirm, contend, corroborate, countersign, declare, depone, depose, disclose, enunciate, express, guarantee, have, hold, insist, lay down, maintain, manifesto, own, pledge, plight, predicate, proclaim, profess, promise, pronounce, protest, put, say, set down, speak, speak out, stand for, state, submit, swear, testify, troth, underwrite, vouch, vow, warrant, witness