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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 ?
For nearly three decades, The Cooperator Expo New York has been an annual spring destination for thousands of property', managers, board members, vendors, service providers, and.
A farmer who wants to be a cooperator should own an easily accessible farm land with an adequate water source.
Last year, more than 600 bear hunters participated in the NYS Black Bear Cooperator Patch Program, in which hunters report their bear harvest to DEC in exchange for a cooperator patch and letter informing them of their bear's age.
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.
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.
Prosecutors must work with allied law enforcement on decisions involving the reduction of charges, granting of immunity or other provision of incentives to the cooperator for his or her grand jury 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.