validity C1 Topic:Describing Qualities US /vəˈlɪd.ᵻ.ti/ See IPA manual Freq #26639 Meanings 1 noun The state of being based on truth, sound reasoning, or solid evidence. Several scientists questioned the validity of the study's conclusions. 2 noun The quality of being legally binding or in force. You should check the validity of your passport before booking the trip. 3 noun In testing, the degree to which a measure actually measures what it is meant to measure. The researchers ran extra checks to confirm the validity of their new questionnaire. Thesaurus Synonyms 1 noun · the state of being based on... validness Word family Forms validities Etymology AI details From valid + -ity, borrowed from Middle French validité, from Late Latin validitas. validité Middle French validitas la-lat *h₂welh₁- Proto-Indo-European View etymology graph -> Topics Describing Qualities Word Formation & Derivatives External links Cambridge Dictionary Wiktionary Google Images # validity **Type:** Word **Level:** C1 **Part of speech:** noun **IPA (US):** /vəˈlɪd.ᵻ.ti/ **Frequency rank:** 26639 ## Meanings 1. The state of being based on truth, sound reasoning, or solid evidence. 2. The quality of being legally binding or in force. 3. In testing, the degree to which a measure actually measures what it is meant to measure. ## Examples - Several scientists questioned the validity of the study's conclusions. - You should check the validity of your passport before booking the trip. - The researchers ran extra checks to confirm the validity of their new questionnaire. ## Roots and Affixes - Root: validité - Root: validitas - Root: *h₂welh₁- ## Etymology From valid + -ity, borrowed from Middle French validité, from Late Latin validitas. ## AI Etymology Validity comes from valid + -ity, borrowed from Middle French validité, from Late Latin validitas. The historical chain includes validité (Middle French), validitas (Late Latin), and *h₂welh₁- (Proto-Indo-European). In present use it covers the state of being based on truth, sound reasoning, or solid evidence, the quality of being legally binding or in force, and in testing, the degree to which a measure actually measures what it is meant to measure. ## Topics - Describing Qualities - Word Formation & Derivatives markdown