co-op

American

[koh-op, koh-op, koh-op] / ˈkoʊ ɒp, ˈkoʊ ɒp, koʊˈɒp /

noun

a cooperative store, dwelling, program, etc.

verb (used with object)

co-oped, co-opped, co-oping, co-opping

to place in a cooperative arrangement, especially to convert (an apartment or building) to a cooperative.

adjective

(of a game, especially a video game) cooperative, requiring players to work together to achieve a common objective: co-op multiplayer games.

co-op play modes;
co-op multiplayer games.

idioms

go co-op, to convert to a cooperative.

Our apartment building is going co-op.

Other Word Forms

co-oper

noun

Etymology

Origin of co-op

First recorded in 1860–65; shortened form

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.

It was the celebrated film actor Robert Ryan, head of the co-op building’s board, welcoming him.

From The Wall Street Journal • May 14, 2026

Property records show that fashion designer Vera Wang owns a unit inside the co-op, as does billionaire hedge fund manager Israel Englander.

From MarketWatch • Apr. 22, 2026

Property taxes in New York City are already sky-high, with co-op owners paying nearly $10,000 annually on average and condo owners paying around $15,000.

From MarketWatch • Apr. 18, 2026

Because of his connection to the co-op, he was appointed equipment coordinator of the Everest climb, and REI agreed to keep him on the payroll during the expedition.

From Los Angeles Times • Apr. 8, 2026

Jon has a job now, supervising part-time at a co-op graphics studio.

From "Cat's Eye" by Margaret Atwood

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023