cooperation

noun

co·​op·​er·​a·​tion (ˌ)kō-ˌä-pə-ˈrā-shən How to pronounce cooperation (audio)
Synonyms of cooperationnext
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

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.
The investigation began after suspicious financial transactions were flagged and expanded through cooperation with Dutch authorities and other EU countries, coordinated through the EU judicial agency Eurojust. CNN Money, 28 Dec. 2025 Wang added that each country approaches nuclear waste management differently, and the Beishan project is designed to serve as a global platform for cooperation, enabling the exchange of international best practices while contributing China’s own research and experience. Bojan Stojkovski, Interesting Engineering, 27 Dec. 2025 The days are represented by a candle and focus on topics like unity, purpose, creativity, and cooperation. James Taylor, CBS News, 27 Dec. 2025 The court called on countries to engage in global cooperation to counter climate change and said states must regulate private actors that may interfere with such obligations. Solcyré Burga, Time, 26 Dec. 2025 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

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Cite this Entry

“Cooperation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cooperation. Accessed 31 Dec. 2025.

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

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