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

But the real fulfillment comes from connection, not validation. —Dr. Brook Choulet, Time, 22 Dec. 2025

By accelerating the transition from laboratory validation to market-ready solutions, the consortium aims to strengthen green hydrogen’s position as a sustainable and competitive energy carrier, supporting broader decarbonization efforts across industry and long-distance transport. —Bojan Stojkovski, Interesting Engineering, 21 Dec. 2025

Does your child tend to dramatize life events, painstakingly detail their life on social media, or seek constant attention and validation—especially online? —Sherri Gordon, Parents, 20 Dec. 2025

Many debt collection agencies struggle to provide adequate validation, especially for older debts that have been sold multiple times. —Angelica Leicht, CBS News, 19 Dec. 2025

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