co-op

noun4

1. •
   Any cooperative, including housing, retail, utility, agricultural, banking or worker cooperatives.

   • Once or twice a week, Chris Wotton, an unemployed farm labourer who ran the coop, and some of the estate's older children, borrowed a van from Centerprise […] — 1973
2. •
   Any shop owned by a cooperative.
3. •
   A unit of a housing cooperative; a purchased apartment where the apartment owners collectively are responsible for maintenance of common areas and upkeep.
4. •
   A cooperative game, as opposed to a competitive game or deathmatch.

verb2

1. •
   To play a game in a cooperative style.

   • Oh, you have this game too? We should co-op some time.
2. •
   Synonym of cooperate.

   • It would also afford her the opportunity to see where he was co-oping. — 2012

noun1

1. •
   (UK) Any of very many shops belonging to the Co-operative Group and its predecessors