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intr.v. co·op·er·at·ed, co·op·er·at·ing, co·op·er·ates
1. To work or act together toward a common end or purpose.
2. To acquiesce willingly; be compliant: asked the child to cooperate and go to bed.
3. To form an association for common, usually economic, benefit: When buyers cooperate, they can make large wholesale purchases at a discount.

[Late Latin cooperārī, cooperāt- : Latin co-, co- + operārī, to work (from opus, oper-, work; see op- in Indo-European roots).]

co·op′er·a′tor n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.cooperator - an associate in an activity or endeavor or sphere of common interest; "the musician and the librettist were collaborators"; "sexual partners"
associate - a person who joins with others in some activity or endeavor; "he had to consult his associate before continuing"
bridge partner - one of a pair of bridge players who are on the same side of the game
dancing partner - one of a pair of people who dance together
References in periodicals archive ?
In most of the cases practically, it is the cooperator rather than the contractor who manages to approach, make friends with and introduce the high rollers to the casino.
based non-profit organization, will receive $87,140 from the International Trade Administration s (ITA) Market Development Cooperator Program (MDCP) to help the sustainable construction building components industry to generate exports to markets in the Arabian Gulf.
We will not allow this because BDI is not a party of spies but a party of NLA fighters," a close cooperator to Lika told Lajm.
Alan Kahn, a cooperator who led the pro-privatization committee, declined to comment on the decision beyond saying, "At this point, we're very disappointed.
Each cooperator received a newsletter explaining the historical data and importance, a memo explaining how to conduct the survey, and a harvest survey card.
During the course of the investigation, the documents show that Habibion and Motamedian told an undercover government cooperator to lie to US law enforcement officials about the transactions.
pay" the cooperator (entity or individual person) a bounty
Cooperation Agreements - Formal written agreements in which the Enforcement Division agrees to recommend to the Commission that a cooperator receive credit for cooperating in investigations or related enforcement actions if the cooperator provides substantial assistance such as full and truthful information and testimony.
Journalist Ethan Brown's book places the anti-snitching trend in its broader political and cultural context, arguing that it is "the poisoned fruit of two decades of highly punitive sentencing policy and the secretive, sprawling, and mostly unregulated cooperator and informant institution.
The National Cooperative Business Association has presented Donald Frederick the Honored Cooperator Award for his long career working with cooperatives while at the U.
She was Don Bosco's first and principal cooperator, and became the "cofounder" of the Salesian family.
The Industry Cooperator Award was given to the Avian Research and Conservation Institute (ARCI) for its contribution to the Swallow-tailed Kite Project.