Meaning of the word ascertains in English

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

ascertains

US /ˌæs.ərˈteɪnz/
UK /ˌæs.əˈteɪnz/

Verb

find something out for certain; make sure of

Example:
The police are trying to ascertain the facts of the case.
He needs to ascertain whether the information is accurate.