Definitions

cooperate

[koh-op-uh-reyt] / koʊˈɒp əˌreɪt /

VERB

work with; assist

Synonyms

STRONGEST

aid assist collaborate comply with conspire contribute coordinate further help participate unite uphold

STRONG

abet advance agree band befriend coincide combine concert concur conduce espouse forward league partner second succor

WEAK

back up be in cahoots chip in coadjute give-and-take go along with join forces join in lend a hand pitch in play ball pool resources pull together share in show willingness side with stick together take part work side by side work together

Antonyms

STRONGEST

block check counteract disagree harm hinder hurt obstruct oppose protest stop

STRONG

differ halt impede reject

WEAK

delay disturb encumber prevent

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.

During his stint as high representative, Paddy Ashdown memorably wielded these so-called "Bonn Powers" sacking 60 Bosnian-Serb officials in one day in 2004 for refusing to cooperate with the Hague Tribunal.

From BBC • May 11, 2026

If housing inflation doesn’t cooperate, it leaves officials without much hope that inflationary pressures can be tamed in the near-term.

From Barron's • May 11, 2026

JPMorgan has said Rana didn’t cooperate with the probe.

From The Wall Street Journal • May 6, 2026

Did Zambada — one-time keeper of many cartel secrets — cooperate with U.S. authorities?

From Los Angeles Times • Apr. 30, 2026

The ability to create an imagined reality out of words enabled large numbers of strangers to cooperate effectively.

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

Vocabulary lists containing cooperate

UCPS 6th Grade Roots List #1

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Divergent

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Chapter 28: The Cold War Era

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