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.

She urged “all tribespeople and villagers” to cooperate with the military and law enforcement.

From The Wall Street Journal • Apr. 5, 2026

Al-Nourji, who seemed eager to cooperate, led the family to the street corner where he met Ashaal.

From Los Angeles Times • Mar. 30, 2026

The one who wondered whether her body would ever cooperate with her longing.

From Slate • Mar. 29, 2026

"We agreed to cooperate in the field of security and defence. Our teams will finalise the details," Zelensky said on social media on Saturday.

From Barron's • Mar. 28, 2026

Maggie sarcastically asked the “kind, dear spirits” to cooperate further, and “a hailstorm of responsive knocks” rained down as the audience roared, some in disbelief, others in approval.

From "American Spirits" by Barb Rosenstock

Vocabulary lists containing cooperate

UCPS 6th Grade Roots List #1

Looking to grow your vocabulary? Check out this interactive, curated word list from our team of English language specialists at Vocabulary.com – one of over 17,000 lists we've built to help learners worldwide!

Divergent

Interested in learning more words like this one? Our team at Vocabulary.com has got you covered! You can review flashcards, quiz yourself, practice spelling, and more – and it's all completely free to use!

Chapter 28: The Cold War Era

Want to remember this word for good? Start your learning journey today with our library of interactive, themed word lists built by the experts at Vocabulary.com – we'll help you make the most of your study time!