Main Entry:

co·op·er·ate

Pronunciation:

\kō-ˈä-pə-ˌrāt\

Function:

intransitive verb

Etymology:

Late Latin cooperatus, past participle of cooperari, from Latin co- + operari to work — more at operate

Date:

1582

1 : to act or work with another or others : act together or in compliance <refused to cooperate with the police> 2 : to associate with another or others for mutual benefit <nations cooperating in a trade agreement>

— co·op·er·a·tor \-ˌrā-tər\ noun