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 author also discusses molecular cooperation and co-evolution during the earliest stages of life's emergence, as well as additional physical perspectives on the OoL, including ideas related to the chiral origin of biomolecules.

From Science Daily • Jun. 10, 2026

FCAS, launched in 2017 by France and Germany and joined by Spain in 2019, had been considered a flagship project of European defence cooperation.

From Barron's • Jun. 10, 2026

Dr. Clarke said the findings highlight a level of planning and cooperation that may have been greater than previously recognized.

From Science Daily • Jun. 9, 2026

During the two-day summit, Kim is expected to turn Beijing’s vows for cooperation into tangible rewards such as expanding cross-border trade and tourism and further developing border economic zones.

From The Wall Street Journal • Jun. 8, 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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