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Definition of cooperator

cooperator

/koʊˈɑːpəˌreɪtər/
(UK: co-operator)
co · op · er · a · tor

Adverb:cooperatively
•
Plural:cooperators
•
Adjective:cooperative
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cooperator Lexical Profile

cooperator Game Scores & Validity

• noun

1

A person, organization, or entity that works jointly with others toward a shared goal or common purpose.

Example

"The agricultural research station relies on local farmers to serve as voluntary cooperators in field trials for drought-resistant crops."


2

American A defendant or witness who assists prosecutors or law enforcement authorities in an investigation, often in exchange for a reduced sentence.

Example

"The defense attorney questioned the credibility of the government's primary cooperator during cross-examination."


3

A member or supporter of a cooperative enterprise, society, or business.

Example

"Each cooperator in the regional dairy collective receives an annual dividend proportional to the volume of milk supplied."

Synonyms
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Antonyms
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• Rhymes for cooperator

Word Origin & Etymology

Borrowed from Late Latin cooperator, a noun of agency from cooperari ('to work together'), formed from com- ('with, together') and operari ('to work').

Cite this Entry


Wordmom. (2026). Definition of Cooperator. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/cooperator
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