[ noun, adverb koh-op; verb koh-op, koh-op ]
/ noun, adverb ˈkoʊ ɒp; verb ˈkoʊ ɒp, koʊˈɒp /


a cooperative store, dwelling, program, etc.

verb (used with object), co-oped or co-opped, co-op·ing or co-op·ping.

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


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

Nearby words

  1. co-ed,
  2. co-edition,
  3. co-host,
  4. co-manage,
  5. co-occur,
  6. co-opetition,
  7. co-opt,
  8. co-orbital,
  9. co-ordinal,
  10. co-ordinate


    go co-op, to convert to a cooperative: Our apartment building is going co-op.

Origin of co-op

First recorded in 1860–65; shortened form

Related formsco-op·er, noun

Can be confusedco-op coop co-opt coupe


or co-op Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for co-op

British Dictionary definitions for co-op



abbreviation for

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for co-op



1861, abbreviation of cooperative. The hyphen is needed to avoid confusion with coop (n.).

Online Etymology Dictionary, © 2010 Douglas Harper