| 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: | 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: | 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: | assert |
| Part of Speech: | verb |
| Definition: | insist, declare, maintain |
Synonyms: |
advance, affirm, allege, argue, asservate, attest, aver, avouch, avow, butt in, cite, claim, contend, defend, horn in, justify, mouth off, pop off, predicate, press, proclaim, profess, pronounce, protest, put forward, say, shoot off one's mouth, shoot one's wad, stand up for, state, stress, swear, uphold, vindicate, warrant |
Antonyms: |
deny, reject |
| Main Entry: | assure |
| Part of Speech: | verb |
| Definition: | promise |
Synonyms: |
affirm, attest, aver, brace up, buck up, certify, confirm, give one's word, guarantee, pledge, swear, vouch for, vow |
| Main Entry: | authenticate |
| Part of Speech: | verb |
| Definition: | establish as real, genuine |
Synonyms: |
accredit, attest, authorize, bear out, certify, confirm, corroborate, endorse, guarantee, justify, prove, substantiate, validate, verify, vouch, warrant |
| Main Entry: | bear witness |
| Part of Speech: | verb |
| Definition: | vouch for |
Synonyms: |
attest, confirm, corroborate, demonstrate, depose, evidence, evince, prove, show, testify, testify to |
| 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 |
| Main Entry: | confess |
| Part of Speech: | verb |
| Definition: | admit, confirm |
Synonyms: |
acknowledge, affirm, allow, assert, attest, aver, avow, blow, blurt out, chirp, clue in, come clean, come out, concede, confide, declare, disclose, divulge, dump on, evince, finger*, fink, grant, humble oneself, leak*, let on, level with, make clean breast of, manifest, narrate, open one's heart, own, own up, post, profess, prove, rat on, recognize, relate, reveal, sing*, snitch, sound off, spill the beans, spit out, squeal, tip hand, unload, vent, weasel |
Antonyms: |
conceal, deny, disavow, disown, hide, mask, repudiate, secrete |
| Main Entry: | confirm |
| Part of Speech: | verb |
| Definition: | ratify, validate, prove |
Synonyms: |
affirm, approve, attest, authenticate, back, bear out, bless, buy, certify, check, check out, circumstantiate, corroborate, debunk, double-check, endorse, establish, explain, give green light, give high sign, give stamp of approval, give the go-ahead, give the nod, justify, lap up, make good, make sure, okay, rubber-stamp, sanction, settle, sign, sign off on, size up, subscribe, substantiate, support, thumbs up, underpin, uphold, verify, vouch, warrant, witness |
| Notes: | corroborate is used in a narrower context, usually by way of providing support for testimony in a legal proceeding; confirm is to lend support to a much wider array of things |
Antonyms: |
annul, cancel, contradict, destroy, disprove, invalidate, oppose, veto, void |