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

Keep scrolling for more

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.
See More

Recent Examples on the Web

Some agreement may well come out of the summit—a statement on Syria or pledges to deepen cooperation on counter-terrorism, for example. Anna Arutunyan, Time, "No Matter What Happens in Helsinki, Putin Has Already Won," 10 July 2018 All of the international cooperation is to be commended, however watching movies on the islands under starry skies is what summer should be about. Ioannis Pappos, Town & Country, "Is This the World's Most Glamorous Place to Watch Movies?," 10 July 2018 Prescription drug disposal event The Round Lake Park Police Department in cooperation with the Grayslake Fire Protection District will conduct a prescription drug take back/ disposal event July 21 from 10 a.m. to noon. Jim Newton, Lake County News-Sun, "Crackdown on Chain O' Lakes yields impaired boating arrests, citations," 8 July 2018 In 1987 the foundation deeded the property to Price County, which now maintains the grounds in cooperation with the Friends of Fred Smith. Chelsey Lewis, Milwaukee Journal Sentinel, "Wisconsin's highest point - Timm's Hill - is a quiet escape away from everything," 5 July 2018 There is close cooperation on defense, border security and law enforcement, and a vast overlap in culture, traditions and pastimes. Rob Gillies And David Crary, Houston Chronicle, "Canada-US relations at a low after Trudeau-Trump trade tiff," 17 June 2018 Here are a few: The U.N.'s International Organization for Migration promotes international cooperation on migration issues and offers humanitarian assistance. CBS News, "Seeking asylum: An immigrant's journey to America," 8 June 2018 Walmart spokeswoman Molly Blakeman said Friday night that a supplier named Caito Foods LLC had initiated a voluntary recall of its fruit, in cooperation with the U.S. Food and Drug Administration. Andy Marso, kansascity, "Salmonella is sickening Missourians who bought pre-cut melon from this major chain," 8 June 2018 These moves threaten not only the ongoing renegotiation of NAFTA but also the $600 billion in yearly trade and Mexico’s cooperation on security. The Christian Science Monitor, "Mexico’s big moment – and one for the US, too," 4 June 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.

See More

First Known Use of cooperation

14th century, in the meaning defined at sense 1

History and Etymology for cooperation

see cooperate

Keep scrolling for more

Learn More about cooperation

Share cooperation

Statistics for cooperation

Last Updated

16 Oct 2018

Look-up Popularity

Time Traveler for cooperation

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

See more words from the same century

Keep scrolling for more

More Definitions for cooperation



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

Keep scrolling for more

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).


not any or not one

Get Word of the Day daily email!

Test Your Vocabulary

Great Scrabble Words—A Quiz

  • scrabble-tiles-that-read-scrabble-quiz
  • Which of the following Q-without-U words means the number five in cards or dice?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.


Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!