| Main Entry: | |
| Part of Speech: | noun |
| Definition: | person who observes an event |
| Synonyms: | attestant, attestor, beholder, bystander, corroborator, deponent, eyewitness, gawker, looker-on, observer, onlooker, proof, rubbernecker, signatory, signer, spectator, testifier, testimony, viewer, watcher |
| Antonyms: | participant |
| Main Entry: | witness |
| Part of Speech: | verb |
| Definition: | testify; authenticate |
| Synonyms: | affirm, announce, argue, attest, be a witness, bear out, bear witness, bespeak, betoken, certify, confirm, corroborate, countersign, depone, depose, endorse, give evidence, give testimony, indicate, say under oath, sign, stand for, subscribe, vouch for |
| Antonyms: | deny, refute |
| Main Entry: | affirm |
| Part of Speech: | verb |
| Definition: | declare the truth of something |
| Synonyms: | assert, asseverate, attest, aver, avouch, avow, certify, cinch, clinch, confirm, cross heart, declare, guarantee, have a lock on, ice*, insist, lock up, maintain, nail down, okay, predicate, profess, pronounce, put on ice, ratify, repeat, rubber-stamp, say so, set, state, swear, swear on bible, swear up and down, testify, vouch, witness |
| Antonyms: | deny, negate, nullify, veto |
| Main Entry: | apostle |
| Part of Speech: | noun |
| Definition: | preacher; supporter |
| Synonyms: | advocate, champion, companion, converter, evangelist, follower, herald, messenger, missionary, pioneer, propagandist, proponent, proselytizer, witness |
| Main Entry: | argue |
| Part of Speech: | verb |
| Definition: | try to convince; present support |
| Synonyms: | appeal, assert, attest, claim, contend, controvert, defend, demonstrate, denote, display, elucidate, establish, evince, exhibit, explain, hold, imply, indicate, justify, maintain, manifest, persuade, plead, present, prevail upon, reason, show, suggest, talk into, testify, vindicate, warrant, witness |
| Antonyms: | agree, comply |
| Main Entry: | attest |
| Part of Speech: | verb |
| Definition: | affirm, vouch for |
| Synonyms: | adjure, announce, argue, assert, asservate, authenticate, aver, bear out, bear witness, certify, confirm, corroborate, countersign, declare, demonstrate, display, exhibit, give evidence, indicate, prove, ratify, seal, show, substantiate, support, sustain, swear, testify, uphold, verify, warrant, witness |
| Antonyms: | deny |
| Main Entry: | behold |
| Part of Speech: | verb |
| Definition: | regard; look at |
| Synonyms: | catch, consider, contemplate, descry, discern, distinguish, earmark, eye, eyeball, feast one's eyes, flash*, lay eyes on, note, notice, observe, perceive, regard, scan, see, spot, spy, survey, view, watch, witness |
| Main Entry: | bystander |
| Part of Speech: | noun |
| Definition: | person who watches |
| Synonyms: | eyewitness, gaper, kibitzer, looker-on, observer, onlooker, passerby, spectator, viewer, watcher, witness |
| Antonyms: | participant |
| Main Entry: | certify |
| Part of Speech: | verb |
| Definition: | declare as true |
| Synonyms: | accredit, approve, ascertain, assure, attest, authenticate, authorize, aver, avow, commission, confirm, corroborate, endorse, guarantee, license, notify, okay, profess, reassure, rubber-stamp, sanction, show, state, swear, testify, validate, verify, vouch, witness |
| Antonyms: | contradict, counteract, deny, disavow, discredit, invalidate, reject, repudiate |