cooperation

1 of 2

noun (1)

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

cooperationist

2 of 2

noun (2)

co·​op·​er·​a·​tion·​ist (ˌ)kō-ˌä-pə-ˈrā-sh(ə-)nist How to pronounce cooperationist (audio)
plural -s
: one who advocates or practices cooperation

Synonyms of cooperation

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Noun (1)

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Examples of cooperation in a Sentence

Noun (1) 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.
Noun
The extent of Israel’s cooperation with the payments was reflected in a 2020 letter from Yossi Cohen, then director of the Mossad, Israel’s intelligence agency, to Qatar’s Emir Tamim bin Hamad Al Thani. — Eric Cortellessa, Time, 18 Oct. 2026 The judge also cited the defendant’s guilty plea, which avoided a lengthy trial, his cooperation with police, lack of a criminal record and his remorsefulness as factors in her decision. — Menelaos Hadjicostis, Los Angeles Times, 16 Oct. 2026 The project will be developed in cooperation with the Taiwan Electrical and Electronic Manufacturers’ Association (TEEMA), which will help raise the necessary funding. — Neetika Walter, Interesting Engineering, 16 Oct. 2026 Yet the war did not only create an immediate need for cooperation. — Andrea Kendall-Taylor, Foreign Affairs, 16 Oct. 2026 See All Example Sentences for cooperation

Word History

Etymology

Noun (1)

see cooperate

First Known Use

Noun (1)

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

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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 20 Oct. 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

Britannica.com: Encyclopedia article about cooperation

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