Meaning of the word validator in English

What does validator mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

validator

US /ˈvæl.ɪ.deɪ.tər/
UK /ˈvæl.ɪ.deɪ.tər/

Noun

a person or system that checks the validity or accuracy of something

Example:
The data validator ensures all entries are in the correct format.
As a peer validator, she reviewed research papers for accuracy.