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.

"I trust he will now reinvent cooperation among the willing for the common good of all," Lagarde wrote.

From BBC • Apr. 26, 2026

Sanchez added that Spain supported "full cooperation with its allies, but always within the framework of international law."

From BBC • Apr. 24, 2026

Cambodia also has expanded cooperation with international partners and has engaged with senior U.S. counterparts, including the Federal Bureau of Investigation.

From The Wall Street Journal • Apr. 24, 2026

He added that his government's stance was "absolute cooperation with allies, but always within the bounds of international law".

From Barron's • Apr. 24, 2026

Since large-scale human cooperation is based on myths, the way people cooperate can be altered by changing the myths—by telling different stories.

From "Sapiens: A Brief History of Humankind" by Yuval Noah Harari

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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