cooperation

[koh-op-uh-rey-shuhn] / koʊˌɒp əˈreɪ ʃən /

NOUN

mutual effort

Synonyms

STRONGEST

aid assistance collaboration participation partnership service unity

STRONG

alliance cahoots coaction coalition combination communion company concert concurrence confederacy confederation conspiracy federation fusion give-and-take harmony help helpfulness logrolling partisanship reciprocity responsiveness society symbiosis synergism synergy teamwork unanimity union

WEAK

coadjuvancy combined effort confunction doing business with esprit de corps playing ball teaming

Antonyms

STRONG

antagonism disagreement discord disunion disunity division divorce hostility management separation

WEAK

blockage delay encumbrance hindrance obstruction prevention stoppage

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

It is the most popular game on earth because it asks for nothing but a ball and other people, and rewards what the strongman cannot abide: cooperation, trust, the surrender of the self.

From Slate • Jun. 11, 2026

Dr. Clarke said the findings highlight a level of planning and cooperation that may have been greater than previously recognized.

From Science Daily • Jun. 9, 2026

The French and German defense ministries will meet in July to develop a realistic road map for future defense cooperation based on a limited number of more relevant and realistic projects, the German official added.

From The Wall Street Journal • Jun. 8, 2026

The French and German defence ministries are set to draw up a plan for defence cooperation "focused on a few realistic and relevant projects" at a forthcoming meeting, the official added.

From Barron's • Jun. 8, 2026

Moine has put together, in cooperation with Gau, what he calls a financial planner’s script book.

From "The Tipping Point" by Malcolm Gladwell

Vocabulary lists containing cooperation

Ecology - Interdependent Relationships in Ecosystems - Introductory

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Lyndon B. Johnson on "The Great Society" (1964)

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John F. Kennedy, Inaugural Address, January 20, 1961

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