cooperate
verb
co·op·er·ate
kō-ˈä-pə-ˌrāt 
cooperated; cooperating; cooperates
1
: to act or work with another or others : act together or in compliance
refused to cooperate with the police
2
: to associate with another or others for mutual benefit
nations cooperating to fight terrorism
Examples of cooperate in a Sentence
It will be much easier if everyone cooperates.
Several organizations cooperated in the relief efforts.
The country agreed to cooperate with the other nations on the trade agreement.
The mother asked the child to put on his pajamas, but the child refused to cooperate.
Witnesses were willing to cooperate.
Recent Examples on the Web
According to charging documents, Contreras Aguilar conspired with other MS-13 members to lure a 14-year-old boy believed to be cooperating with law enforcement to a park in Fairfax County, where the teenager was held down, slain, and buried by the Salvadoran gang.
—
Mia Cathell, The Washington Examiner, 24 Mar. 2026
The pickup driver remained at the scene and is cooperating with authorities, police said.
—Paula Wethington, CBS News, 23 Mar. 2026
Albanese said the defense partnership would provide a framework for the EU and Australia to cooperate on global challenges, marking as areas of collaboration defense industries, maritime security, cyber security, countering terrorism and combating hybrid threats such as disinformation.
—ABC News, 23 Mar. 2026
Ukraine has rallied the world on the issue, building international coalitions to try to push Russia to cooperate.
—Ivana Kottasová, CNN Money, 22 Mar. 2026
See All Example Sentences for cooperate
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Mia Cathell, The Washington Examiner, 24 Mar. 2026
The pickup driver remained at the scene and is cooperating with authorities, police said.
—Paula Wethington, CBS News, 23 Mar. 2026
Albanese said the defense partnership would provide a framework for the EU and Australia to cooperate on global challenges, marking as areas of collaboration defense industries, maritime security, cyber security, countering terrorism and combating hybrid threats such as disinformation.
—ABC News, 23 Mar. 2026
Ukraine has rallied the world on the issue, building international coalitions to try to push Russia to cooperate.
—Ivana Kottasová, CNN Money, 22 Mar. 2026
See All Example Sentences for cooperate
Cite this Entry
“Cooperate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cooperate. Accessed 26 Mar. 2026.
Copy CitationKids Definition
cooperate
verb
co·op·er·ate
kō-ˈäp-(ə-)ˌrāt
cooperated; cooperating
: to act, work, or associate with others so as to get something done
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