verification

American  

[ver-uh-fi-key-shuhn] / ˌvɛr ə fɪˈkeɪ ʃən /

noun

verifications plural

1. the act of verifying.

2. the state of being verified.

3. evidence that establishes or confirms the accuracy or truth of something.

   We could find no verification for his fantastic claims.

4. a formal assertion of the truth of something, as by oath or affidavit.

5. the process of research, examination, etc., required to prove or establish authenticity or validity.

6. Law. a short confirmatory affidavit at the end of a pleading or petition.

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verification British  

/ ˌvɛrɪfɪˈkeɪʃən /

noun

1. establishment of the correctness of a theory, fact, etc

2. evidence that provides proof of an assertion, theory, etc

3. law

   1. (formerly) a short affidavit at the end of a pleading stating the pleader's readiness to prove his assertions

   2. confirmatory evidence

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Other Word Forms

Derived Forms

• nonverification
  noun
• preverification
  noun
• reverification
  noun
• unverificative
  adjective
• verificative
  adjective
• verificatory
  adjective

Inflected Forms

Nouns

• verifications
  plural

Etymology

Origin of verification

1515–25; < Medieval Latin vērificātiōn (stem of vērificātiō ), equivalent to vērificāt ( us ) (past participle of vērificāre; see verify, -ate ¹) + -iōn- -ion

Explanation

Verification is an extra or final bit of proof that establishes something is true. To verify something is to make sure it's correct or true, so verification is an action that establishes the truth of something. Checking an ID is a verification of your age. Your bank will often ask for part of your social security number as verification of your identity. Scientists do research to establish verification for their theories. In all cases, verification is like a stamp of approval.

Example Sentences

"But disguising palm oil as waste products like POME... has been far too easy for suppliers and traders. Verification and certification of these imports is clearly failing," Delaney said.

From Barron's • Mar. 16, 2026

The source of the bad data was a Department of Homeland Security tool called the Systematic Alien Verification for Entitlements, or SAVE.

From Salon • Feb. 27, 2026

The group's findings appear in a new report, "Monitoring, Reporting and Verification for Marine Carbon Dioxide Removal," released during COP30, the UN climate conference now taking place in Brazil.

From Science Daily • Nov. 20, 2025

While industry group the Age Verification Providers Association says there is a "wide range of convenient, privacy-preserving methods".

From BBC • Apr. 17, 2025

Verification of the Hypothesis.—The hypothesis that germ-cells of crossed forms are of two classes with respect to a given pair of Mendelian characters is further substantiated by the following facts.

From Being Well-Born An Introduction to Eugenics by Guyer, Michael F.