Synonyms to take oath

testify, acknowledge, affirm, allege, announce, argue, assert, assert under oath, asseverate, assure, attest, aver, avouch, avow, be indicative of, be significant of, be symptomatic of, bear witness, bespeak, betoken, book, bring forward, call to witness, certify, characterize, connote, declare, demonstrate, denominate, denote, depone, depose, differentiate, disclose, display, entail, express, give evidence, give token, guarantee, highlight, hint, identify, indicate, involve, kiss the book, manifest, mark, mean, mount, note, point to, proclaim, prove, reveal, say, show, signify, stand for, state, suggest, swear, swear by bell, swear in, swear the truth, swear to, swear to God, swear to goodness, symptomatize, symptomize, vouch, vouchsafe, vow, warrant, witness, acculturate, adduce, advance, affect, affront, ameliorate, amend, array, better, boost, brandish, brave, breast, breathe, bring before, bring forth, bring into view, bring on, bring out, bring to bear, bring to notice, bring up, broach, challenge, civilize, commend to attention, confront, confront