confirm

con·firm  (kn-fûrm)

tr.v. con·firmed, con·firm·ing, con·firms

1. To support or establish the certainty or validity of; verify.

2. To make firmer; strengthen: Working on the campaign confirmed her intention to go into politics.

3. To make valid or binding by a formal or legal act; ratify.

4. To administer the religious rite of confirmation to.

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[Middle English confirmen, from Old French confermer, from Latin cnfirmre : com-, intensive pref.; see com- + firmre, to strengthen (from firmus, strong; see dher- in Indo-European roots).]

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con·firma·bili·ty n.

con·firma·ble adj.

con·firma·tory (-fûrm-tôr, -tr) adj.

con·firmer n.

Synonyms: confirm, corroborate, substantiate, authenticate, validate, verify
These verbs mean to affirm the truth, accuracy, or genuineness of something. Confirm implies removal of all doubt: "We must never make experiments to confirm our ideas, but simply to control them" Claude Bernard.
Corroborate refers to supporting something by means of strengthening evidence: The witness is expected to corroborate the plaintiff's testimony.
To substantiate is to establish by presenting substantial or tangible evidence: "one of the most fully substantiated of historical facts" James Harvey Robinson.
Authenticate implies the establishment of genuineness of something by the testimony of an expert: Never purchase an antique before it has been authenticated.
Validate refers to establishing the validity of something, such as a theory, claim, or judgment: The divorce validated my parents' original objection to the marriage.
Verify implies proving by comparison with an original or with established fact: The bank refused to cash the check until the signature was verified.

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confirm

Verb

1. to prove to be true or valid

2. to reaffirm (something), so as to make (it) more definite: she confirmed that she is about to resign as leader of the council

3. to strengthen: this cruise confirmed my first impressions of the boat's performance

4. to formally make valid

5. to administer the rite of confirmation to [Latin confirmare]

Thesaurus

Verb	1.	confirm - establish or strengthen as with new evidence or facts; "his story confirmed my doubts"; "The evidence supports the defendant" affirm, corroborate, substantiate, support, sustain back up, back - establish as valid or genuine; "Can you back up your claims?" vouch - give supporting evidence; "He vouched his words by his deeds" verify - confirm the truth of; "Please verify that the doors are closed"; "verify a claim" shew, show, demonstrate, prove, establish - establish the validity of something, as by an example, explanation or experiment; "The experiment demonstrated the instability of the compound"; "The mathematician showed the validity of the conjecture" document - support or supply with references; "Can you document your claims?" validate - prove valid; show or confirm the validity of something
	2.	confirm - strengthen or make more firm; "The witnesses confirmed the victim's account" reassert uphold, maintain - support against an opponent; "The appellate court upheld the verdict" justify, warrant - show to be reasonable or provide adequate ground for; "The emergency does not warrant all of us buying guns"; "The end justifies the means" affirm - say yes to verify - attach or append a legal verification to (a pleading or petition) corroborate, validate - give evidence for reconfirm - confirm again; "You must reconfirm your flight reservations"
	3.	confirm - make more firm; "Confirm thy soul in self-control!" beef up, fortify, strengthen - make strong or stronger; "This exercise will strengthen your upper body"; "strengthen the relations between the two countries"
	4.	confirm - support a person for a position; "The Senate confirmed the President's candidate for Secretary of Defense" approve, O.K., okay, sanction - give sanction to; "I approve of his educational policies"
	5.	confirm - administer the rite of confirmation to; "the children were confirmed in their mother's faith" organized religion, religion, faith - an institution to express belief in a divine power; "he was raised in the Baptist religion"; "a member of his own faith contradicted him" covenant - enter into a covenant

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confirm

verb 1. prove, support, establish, back up, verify, validate, bear out, substantiate, corroborate, authenticate

verb 2. ratify, establish, approve, sanction, endorse, authorize, certify, validate, authenticate

verb 3. strengthen, establish, settle, fix, secure, assure, reinforce, clinch, verify, fortify

Translations

confirm [kənˈfəːm] vt → confirmar

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confirm [kənˈfəːm] vt [+ report], (Rel) → confirmer [+ appointment]; ratifier

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confirm [kənˈfəːm] vt → bestätigen;

to be confirmed (Rel) → konfirmiert werden

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confirm [kənˈfəːm] vt → confermare;

(REL) → cresimare