validation

noun

val·​i·​da·​tion ˌva-lə-ˈdā-shən 

: an act, process, or instance of validating

especially : the determination of the degree of validity of a measuring device

Synonyms of validation

• evidence
• proof
• testimony
• documentation
• testament
• confirmation

Examples of validation in a Sentence

I'm afraid we cannot act on your claim without validation.

Recent Examples on the Web

The validation came about two and a half years in, when Darlington put a prototype in front of the board. — Erik Shilling, Robb Report, 7 Oct. 2026

Difficult-to-reverse decisions also need strong controls, such as human review, deterministic rules, a traditional model or another independent validation mechanism. — Swati Deepak Kumar, Forbes.com, 6 Oct. 2026

In September 2025, a federal judge agreed and invalidated the rule, called the risk adjustment data validation, or RADV, rule. — Tara Bannow, STAT, 5 Oct. 2026

People handle the judgment, and clinical validation stays with the specialists. — Miami Herald, 5 Oct. 2026

Word History

Etymology

valid(ate) + -ation, perhaps after French validation

First Known Use

circa 1656, in the meaning defined above

Phrases Containing validation

• self-validation

Rhymes for validation

• abdication
• aberration
• abjuration
• abnegation
• abrogation
• acceptation
• acclamation
• acclimation
• accusation
• activation
• actuation
• acylation