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.

In Minneapolis, ICE agents operated without the cooperation of local and state law enforcement.

From The Wall Street Journal • Jun. 1, 2026

"We ask for your cooperation in creating a city where everyone can enjoy themselves comfortably."

From BBC • Jun. 1, 2026

The arc of history today bends not towards cooperation, but competition.

From MarketWatch • May 31, 2026

Van Leeuwen notes that understanding these patterns could improve scientists' understanding of cooperation, social learning, and emotional well-being in both humans and other animals.

From Science Daily • May 31, 2026

‘That’s right. For hundreds of years, the gods tried to separate us to keep us from fighting. But there’s a better kind of peace - cooperation.’

From "Blood of Olympus" by Rick Riordan

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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