confirm

Main Entry:
confirm [kuhn-furm]
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
Main Entry: admit
Part of Speech: verb
Definition: confess, acknowledge
Synonyms: accept, accord, acquiesce, adopt, affirm, agree, allow, approve, avow, bare, bring to light, communicate, concede, concur, confide, confirm, consent, cop a plea, credit, declare, disclose, divulge, enumerate, expose, go into details, grant, indicate, let, let on, make known, narrate, number, open up, own, own up, permit, proclaim, profess, recite, recognize, relate, reveal, spill*, subscribe to, talk, tell, tolerate, uncover, unveil, yield
Notes: with admit, the acknowledgment of something being true applies to one's own sphere of conduct, whereas with concede the acknowledgment applies to another's; admit implies reluctance to disclose, grant, or concede and refers usually to facts rather than their implications
Antonyms: confute, deny, dispute, dissent, gainsay, refuse
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: approve
Part of Speech: verb
Definition: allow, authorize
Synonyms: accede, accept, accredit, acquiesce, advocate, affirm, agree, assent, authorize, back*, bless*, boost, buy, buy into, certify, charter, concur, confirm, consent, dig*, empower, encourage, endorse, establish, get behind, give go-ahead, go along with, groove*, hats off to, lap up, license, maintain, make law, make valid, mandate, okay, permit, pronounce, push for, ratify, recommend, sanction, seal, second, sign, sign off on, stump for, subscribe to, support, thumbs up, uphold, validate
Antonyms: disallow, disapprove, invalidate, oppose, refuse, reject
Main Entry: ascertain
Part of Speech: verb
Definition: make sure
Synonyms: catch on, check, check out*, check up on, confirm, determine, dig*, discover, divine, double-check, establish, eye*, eyeball, find out, fix, get down cold, get down pat, get hold of, get it down, get the hang of, identify, learn, learn the ropes, look-see, make certain, make sure, peg, pick up on, pick up*, read, see, settle, size, size up, tell, verify
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: assure
Part of Speech: verb
Definition: make certain
Synonyms: cinch, clinch, complete, confirm, ensure, guarantee, have a lock on, ice*, insure, lock, lock on, lock up, make sure, nail down, put on ice, seal, secure, set
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: 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
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