co·​op·​er·​a·​tion | \(ˌ)kō-ˌä-pə-ˈrā-shən \

Definition 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

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Other Words from cooperation

cooperationist \(ˌ)kō-​ˌä-​pə-​ˈrā-​sh(ə-​)nist \ noun

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.
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Recent Examples on the Web

The report credits both cooler summers in 2017 and 2018 and government cooperation with helping certain areas bounce back. Katherine Lagrave, Condé Nast Traveler, "The Great Barrier Reef Is Bouncing Back From Mass Bleaching," 10 Sep. 2018 Feder has identified at least five areas of potential cooperation, including energy, manufacturing, trade, transportation and finance. David Isaac, Jewish Journal, "Israel and China start conversation about mutual ties," 11 July 2018 But Mendez’s ruling said because Congress had not explicitly required state or local cooperation, the Trump administration could not block what was otherwise the cancellation of a voluntary effort. John Myers,, "Federal judge denies Trump administration effort to block California's 'sanctuary' law," 5 July 2018 The focus of the fourth goal outlined in the document is to increase international cooperation to better prepare the rest of the world for the possibility of an asteroid strike—under the leadership of the United States. Hanneke Weitering, Scientific American, "NASA Offers New Plan to Detect and Destroy Dangerous Asteroids," 21 June 2018 But the question that remains unanswered is how far Mr Salvini will take his new policy of non-cooperation. The Economist, "Italy’s Matteo Salvini refuses to let a boat full of migrants land," 12 June 2018 It is hoped, through cooperation, that the juvenile will turn himself [in]. Michael Harriot, The Root, "Not All Cops: Unarmed Black Teen Not Shot and Killed by Police," 4 June 2018 On Sunday, European leaders are set to hold a summit to agree on a nonlegally binding political declaration outlining close economic cooperation with the U.K. following Brexit. Max Colchester, WSJ, "Campaign to Oust U.K. Prime Minister Theresa May Fizzles—for Now," 20 Nov. 2018 Like Israel, South Africa was also ringed by hostile countries and its policy of racial segregation made defense cooperation with other countries unlikely. Kyle Mizokami, Popular Mechanics, "Sheep Glands Point to Nukes as Source of Mysterious 1979 Explosion," 12 Sep. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'cooperation.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of cooperation

14th century, in the meaning defined at sense 1

History and Etymology for cooperation

see cooperate

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Statistics for cooperation

Last Updated

11 Dec 2018

Look-up Popularity

Time Traveler for cooperation

The first known use of cooperation was in the 14th century

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English Language Learners Definition of cooperation

: a situation in which people work together to do something

: the actions of someone who is being helpful by doing what is wanted or asked for


co·​op·​er·​a·​tion | \kō-ˌä-pə-ˈrā-shən \

Kids Definition of cooperation

: the act or process of working together to get something done

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Comments on cooperation

What made you want to look up cooperation? Please tell us where you read or heard it (including the quote, if possible).


living or existing for a long time

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