cooperation

noun

co·​op·​er·​a·​tion (ˌ)kō-ˌä-pə-ˈrā-shən How to pronounce cooperation (audio)
Synonyms of cooperation
1
: the actions of someone who is being helpful by doing what is wanted or asked for : common effort
We are asking for your full cooperation.
2
: association of persons for common benefit
established trade and economic cooperations
cooperationist
(ˌ)kō-ˌä-pə-ˈrā-sh(ə-)nist How to pronounce cooperation (audio)
noun

Synonyms of cooperation

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Examples of cooperation in a Sentence

The report cited a lack of cooperation between state and local officials. Thank you for your cooperation. We are asking for your full cooperation.
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.
Do the stars or the festival usually shape and change the story of the trailer in cooperation with you? — Georg Szalai, HollywoodReporter, 3 July 2026 Lutnick cited Anthropic’s cooperation with the government as a key reason for the detente. — Jared Perlo, NBC news, 1 July 2026 Canyon has been trialing this technology in cooperation with Volkswagen, and testing showed that connected vehicles and bicycles can successfully detect each other and exchange live safety information. — Maryna Holovnova, New Atlas, 4 July 2026 This will include signals from technology and telecommunications companies alongside financial sector data, as well as faster asset recovery, freezing of fraud proceeds, and stronger international cooperation. — Susie Violet Ward, Forbes.com, 2 July 2026 See All Example Sentences for cooperation

Word History

Etymology

see cooperate

First Known Use

15th century, in the meaning defined at sense 1

Time Traveler
The first known use of cooperation was in the 15th century

Rhymes for cooperation

See All Rhymes for cooperation

Browse Nearby Words

cooperate
cooperation
cooperationist
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Cite this Entry

“Cooperation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cooperation. Accessed 10 Jul. 2026.

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Kids Definition

cooperation

noun
co·​op·​er·​a·​tion kō-ˌäp-ə-ˈrā-shən How to pronounce cooperation (audio)
: the act or process of cooperating

More from Merriam-Webster on cooperation

Nglish: Translation of cooperation for Spanish Speakers

Britannica.com: Encyclopedia article about cooperation

Last Updated: - Updated example sentences
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