con·firm

(kən-fûrm′)

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

a. To support or establish the certainty or validity of; verify: confirm a rumor.

b. To reaffirm the establishment of (a reservation or advance arrangement).

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.

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

con·firm′a·bil′i·ty n.

con·firm′a·ble adj.

con·firm′a·to′ry (-fûr′mə-tôr′ē) adj.

con·firm′er n.

Synonyms: confirm, corroborate, substantiate, authenticate, validate, verify
These verbs mean to establish or support the truth, accuracy, or genuineness of something. Confirm implies the establishment of certainty or conviction: The information confirmed our worst suspicions.
To corroborate something is to strengthen or uphold the evidence that supports it: The witness is expected to corroborate the plaintiff's testimony.
To substantiate is to establish by presenting solid or reliable evidence: "What I shall say can be substantiated by the sworn testimony of witnesses" (Mark Twain).
To authenticate something is to establish its genuineness, as by expert testimony or documentary proof: 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.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

con•firm•a•to•ry

(kənˈfɜr məˌtɔr i, -ˌtoʊr i)

also con•firm′a•tive,

adj.

serving to confirm; corroborative.

[1630–40; < Medieval Latin]

ThesaurusAntonymsRelated WordsSynonymsLegend:

Adj.

confirmatory - serving to support or corroborate; "collateral evidence"

corroborative, corroboratory, substantiating, substantiative, validating, validatory, verificatory, verifying, confirmative, confirming, collateral

supportive - furnishing support or assistance; "a supportive family network"; "his family was supportive of his attempts to be a writer"

Translations

confirmatory

adj → bestätigend

Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007