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.

We agreed on the importance of cooperation and avoiding isolationism, recognising that public health threats do not respect borders and require coordinated regional and global action.

From BBC • May 29, 2026

Scientists say future cooperation between ground-based observatories and NASA's space telescopes will help reveal even more about these violent stellar explosions and the extreme objects hidden inside them.

From Science Daily • May 27, 2026

Biden, who prioritised working with US allies, envisioned a broad, structured role for the Quad including cooperation on disaster relief, supply chains and public health.

From Barron's • May 26, 2026

The company highlighted progress in phased-array antenna supply to Starlink and rising cooperation with satellite internet service Amazon Leo.

From The Wall Street Journal • May 26, 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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