cooperate

verb

co·​op·​er·​ate kō-ˈä-pə-ˌrāt How to pronounce cooperate (audio)
cooperated; cooperating; cooperates

intransitive verb

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 to fight terrorism
cooperator noun

Examples of cooperate in a Sentence

It will be much easier if everyone cooperates. Several organizations cooperated in the relief efforts. The country agreed to cooperate with the other nations on the trade agreement. The mother asked the child to put on his pajamas, but the child refused to cooperate. Witnesses were willing to cooperate.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Lawrence, who left before Shanda was set on fire and cooperated early with police, was sentenced to 20 years for criminal confinement. Christina Coulter, People.com, 19 July 2025 The law subjects stablecoin issuers to the Bank Secrecy Act, obligating them to verify customers, track transactions, and cooperate with federal authorities. Becca Bratcher, Forbes.com, 19 July 2025 The board is fighting to preserve its designation as a community action agency, navigating foreclosure and cooperating with the Department of Administration's forensic audit. Gina Lee Castro, jsonline.com, 18 July 2025 The driver, a man in his 50s, stayed at the scene and cooperated with officers, Molina said. Regina Elling, San Diego Union-Tribune, 17 July 2025 See All Example Sentences for cooperate

Word History

Etymology

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

First Known Use

1582, in the meaning defined at sense 1

Time Traveler
The first known use of cooperate was in 1582

Browse Nearby Words

Cite this Entry

“Cooperate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cooperate. Accessed 23 Jul. 2025.

Kids Definition

cooperate

verb
co·​op·​er·​ate kō-ˈäp-(ə-)ˌrāt How to pronounce cooperate (audio)
cooperated; cooperating
: to act, work, or associate with others so as to get something done

More from Merriam-Webster on cooperate

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