validity

C1 Topic:Philosophy & Reasoning

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

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

Philosophy & Reasoning Abstract Ideas Word Formation & Derivatives

External links

# 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
- Philosophy & Reasoning
- Abstract Ideas
- Word Formation & Derivatives

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