Meaning of the word cooperator in English

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

cooperator

US /koʊˈɑpəreɪtər/
UK /kəʊˈɒpəreɪtər/

Noun

a person who cooperates; a collaborator

Example:
She is a valuable cooperator in our team.
The police sought a cooperator to help with the investigation.