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# verifier

«verifier» in Mova's school dictionary: **true, correct or real** — its meaning for a pupil, its sense in the lessons and examples.

### part of speech

noun (a verifier, verifiers)

### meaning for a pupil

1) A person who checks that something is true, correct or real. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/verifier/#m1)

2) (computing) A program or tool that checks automatically whether something is correct, such as a password, a document or the answer to a problem. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/verifier/#m2)

### sense in the lessons

Used in computing, science and official work. A fact verifier checks facts in news stories; an age verifier checks how old someone is before they use a website. In maths and computing, a verifier checks a proof or an answer. It comes from "verify" (to check that something is true).

### examples

- The verifier checked that the signature was real. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/verifier/#x1)
- A computer verifier checked all our answers in seconds. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/verifier/#x2)
- Fact verifiers make sure the news report is true. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/verifier/#x3)
- The website uses an age verifier before you can sign up. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/verifier/#x4)
- A proof verifier can check that each step of a maths proof follows the rules. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/verifier/#x5)
- The ticket verifier scanned my code at the gate. [tree →](https://md.mova.elamur.ai/free/en/corpora/dictionaries/school/V/verifier/#x6)

### note

Countable: a verifier, verifiers. Built from "verify" plus -er (y changes to i). Related words: verify, verification, verified. A verifier only checks; it does not create the answer.

### Trees and pragmatics

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