I. kōˈäpəˌrāt, ˈ ̷ ̷| ̷ ̷ ̷ ̷ˌ ̷ ̷, usu -ād.+V intransitive verb
( -ed/-ing/-s )
Etymology: Late Latin cooperatus, past participle of cooperari, from Latin co- + operari to work — more at operate
1. : to act or work with another or others to a common end : operate jointly
marines and navy men cooperated in the attack
the police force always cooperates with the fire department
2. : to act together : produce an effect jointly
heavy rains and rapid thaws cooperated to bring disastrous floods
3. : to associate with another or others for mutual often economic benefit
many nations cooperated in the trade agreement
Synonyms: see unite
II. (ˈ)kō|äp(ə)rə̇t also (ˈ)kō|äpəˌrāt, usu -d.+V adjective
: made cooperative : brought into working together
cooperate forces