[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/dictionaries/school/w/validity.html)

[home](https://md.mova.elamur.ai/free/en/) / [dictionaries](https://md.mova.elamur.ai/free/en/dictionaries/) / [The school dictionary](https://md.mova.elamur.ai/free/en/dictionaries/school/) / validity

[← V](https://md.mova.elamur.ai/free/en/dictionaries/school/V/)

# validity

«validity» in Mova's school dictionary: **how true, fair or correct something is, for example an…** — its meaning for a pupil, its sense in the lessons and examples.

### part of speech

noun (validity)

### meaning for a pupil

1) Validity is how true, fair or correct something is, for example an argument or a test. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/validity/#m1)

2) (law) Validity is whether a document, ticket or rule is official and still accepted, for example a passport's validity. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/validity/#m2)

### sense in the lessons

In maths and logic it means an argument follows correctly from its premises. In science it means a test really measures what it should (a fair test). In everyday life it is about tickets, passports and cards that have not expired. Phrases: the validity of, check the validity, period of validity.

### examples

- The scientist questioned the validity of the results. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/validity/#x1)
- Check the validity of your passport before you travel. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/validity/#x2)
- A fair test makes your experiment more valid; that is its validity. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/validity/#x3)
- The ticket's validity ends at midnight. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/validity/#x4)
- The judge looked at the validity of the will. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/validity/#x5)
- The teacher asked us to judge the validity of each argument. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/validity/#x6)

### note

Mostly uncountable. Adjective: valid; opposite: invalid. Trap in logic: an argument can be valid (the steps follow) even if a premise is false.

### Trees and pragmatics

[Every meaning and example of «validity» parsed by Mova](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/validity/), each sentence with its dependency tree and frames.