To make or declare legally valid.
Definition of VALIDATION. : an act, process, or instance of validating; especially: the determination of the degree of validity of a measuring device. ADVERTISEMENT. Definition of VALIDATE. transitive verb. 1. a: to make legally valid: ratify c: to confirm the validity of (an election); also: to declare (a person) elected. 2. See validate defined for English-language learners. See validate defined for kids. verify implies the establishing of correspondence of actual facts or details with those proposed or guessed at. authenticate implies establishing genuineness by adducing legal or official documents or expert opinion. validate implies establishing validity by authoritative affirmation or by factual proof. 1 Verification and validation, in engineering, confirming that a product or service meets the needs of its users.
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define validate