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
Police said that the driver remained at the scene to cooperate with their investigation and that speed, distracted driving and impairment do not appear to have been factors.
—
Dean Fioresi, CBS News, 29 Dec. 2025
Police are in contact with the driver of the SUV, and that person was cooperating in the investigation, Moncayo said.
—Nathan Pilling, Kansas City Star, 27 Dec. 2025
Prosecutors accused Moore of contacting the staffer via phone calls and texts after the breakup, prompting the woman to contact the University of Michigan and cooperate in its investigation.
—Scott Thompson, FOXNews.com, 26 Dec. 2025
The driver who struck Torres remained at the scene and cooperated with investigators, police said.
—Lillie Davidson, Fort Worth Star-Telegram, 26 Dec. 2025
See All Example Sentences for cooperate
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Dean Fioresi, CBS News, 29 Dec. 2025
Police are in contact with the driver of the SUV, and that person was cooperating in the investigation, Moncayo said.
—Nathan Pilling, Kansas City Star, 27 Dec. 2025
Prosecutors accused Moore of contacting the staffer via phone calls and texts after the breakup, prompting the woman to contact the University of Michigan and cooperate in its investigation.
—Scott Thompson, FOXNews.com, 26 Dec. 2025
The driver who struck Torres remained at the scene and cooperated with investigators, police said.
—Lillie Davidson, Fort Worth Star-Telegram, 26 Dec. 2025
See All Example Sentences for cooperate
Cite this Entry
“Cooperate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cooperate. Accessed 29 Dec. 2025.
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
Love words? Need even more definitions?
Merriam-Webster unabridged
Share