con·firm 
(k
n-fûrm
) See the pronunciation key
TRANSITIVE VERB:
con·firmed, con·firm·ing, con·firms
ETYMOLOGY:
Middle English confirmen, from Old French confermer, from Latin c
nfirm
re : com-, intensive pref. ; see com- + firmre, to strengthen (from firmus, strong; see dher- in Indo-European roots)
OTHER FORMS:
con·firm
a·bili·ty(Noun), con·firma·ble(Adjective), con·firma·tory(Adjective), con·firmer(Noun)
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.
(k
n-fûrm) See the pronunciation key TRANSITIVE VERB:
con·firmed, con·firm·ing, con·firms
- To support or establish the certainty or validity of; verify.
- To make firmer; strengthen: Working on the campaign confirmed her intention to go into politics.
- To make valid or binding by a formal or legal act; ratify.
- To administer the religious rite of confirmation to.
ETYMOLOGY:
Middle English confirmen, from Old French confermer, from Latin c
nfirmre : com-, intensive pref. ; see com- + firmre, to strengthen (from firmus, strong; see dher- in Indo-European roots)OTHER FORMS:
con·firm
a·bili·ty(Noun), con·firma·ble(Adjective), con·firma·tory(Adjective), con·firmer(Noun)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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