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.

See Examples For:

co-op co-oping

Willem Dafoe plays a forgotten poet in ‘Late Fame,’ ‘Ted Lasso’ takes the field for the first time in three years, the studio behind ‘Untitled Goose Game’ releases a new co-op offering, and more.

From The Wall Street Journal ● Aug. 2, 2026

Condo and co-op owners will have to pay a 4% annual tax on property valued from $1 million to $3 million, and 6.25% on those over $5 million.

From The Wall Street Journal ● Jul. 29, 2026

It will also be useful if he is buying in a co-op whose board has the final say on whether he’s admitted.

From MarketWatch ● Jun. 2, 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

This time of year they’re paying two bucks a pound for lobster at the co-op.

From "The Young Man and the Sea" by Rodman Philbrick

We worry that a return to six-man football might lead to a breakup of some schools already co-oping and on the road to consolidation.

From Washington Times ● May 25, 2018

For years, stores have used less obtrusive forms of co-advertising, called co-oping, in their catalogs to offset the rising costs of postage and printing.

From Time Magazine Archive

Prominent communitarian Amitai Etzioni, in highlighting the shortcomings of most institutionalized child care, has duly stressed the virtues of parents' "co-oping," working part time at day-care centers.

From Time Magazine Archive

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