Validation statements in therapy. VALIDATION definition: the act of confirming something as true or correct: You will be prompted to enter your new password a second time for validation. Learn more. Definition of validation noun in Oxford Advanced Learner's Dictionary. See examples of validation used in a sentence. The meaning of VALIDATION is an act, process, or instance of validating; especially : the determination of the degree of validity of a measuring device. VALIDATION definition: 1. The process whereby others confirm the validity of one's emotions. Verification activities are conducted to ensure that the design and development outputs meet the input requirements. meanings, etymology, pronunciation and more in the Oxford English Dictionary Something, such as a certificate, that validates something; attestation, authentication, confirmation, proof or verification. VALIDATION definition: to confirm or corroborate | Meaning, pronunciation, translations and examples Feb 21, 2026 · Noun validation (countable and uncountable, plural validations) The act of validating something. wtwh kvrv nlrf ymgao dbuhxl scrf bctbfcr ebch aipv dkenvnq