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.

The European Commission proposed legislation for the deal in September 2025, which will remove tariffs on exported goods such as EU cheese and seeks to enhance cooperation on raw material supply chains.

From The Wall Street Journal • May 22, 2026

To avoid any quarrels, I suggest timing any stock sale, with the beneficiaries’ cooperation, so that no one inadvertently misses out on a dividend payment.

From MarketWatch • May 21, 2026

On Wednesday evening, Magyar is expected in Austria, where economic cooperation and migration policy will be key topics.

From Barron's • May 20, 2026

Despite the differences between the two, Lo says: "The Sino-Russian partnership remains resilient. Both sides recognise that it is too important to fail, especially given there are no viable alternatives to continuing cooperation."

From BBC • May 18, 2026

He needed cooperation and commitment from all of the kingdoms in his territory before taking on the Parthian Empire.

From "Sterling Biographies®: Cleopatra: Egypt's Last and Greatest Queen" by Susan Blackaby

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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