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.

Together, we have the chance to draw on these values to create a future of greater prosperity, cooperation and happiness and peace for our children,” Trump added.

From Los Angeles Times • May 17, 2026

"The Chinese government attaches great importance to this trend," the embassy said in a statement, pledging closer cooperation with Sri Lankan law enforcement agencies.

From Barron's • May 17, 2026

Nigeria and the US have increased military cooperation as the country ramps up efforts to fight extremist violence.

From BBC • May 16, 2026

The POW swaps remain one of the few remaining areas of cooperation between the two sides, at war since Russia ordered troops into its neighbour in February 2022.

From Barron's • May 15, 2026

They declared blandly that the bill was unnecessary because cooperation and consultation were “usual.”

From "Silent Spring" by Rachel Carson

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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