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

Your restlessness could tempt you to overindulge, overspend or seek validation, so check in with yourself first and foremost. — Valerie Mesa, PEOPLE, 3 July 2026

Several of the French players appeared to share Mbappe’s frustration and validation. — Adam Crafton, New York Times, 5 July 2026

The company’s work remains in the development phase, with ongoing validation and regulatory steps ahead. — Connie Etemadi, USA Today, 6 July 2026

Hays argues that true relational longevity requires active skill-building rather than relying on endless external validation. — Ginger Gentile, Forbes.com, 7 July 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