co-op vs flea market

co-op

verb
  • Synonym of cooperate 

noun
  • A unit of a housing cooperative; a purchased apartment where the apartment owners collectively are responsible for maintenance of common areas and upkeep. 

  • A cooperative game, as opposed to a competitive game or deathmatch. 

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

  • Any shop owned by a cooperative. 

flea market

noun
  • A permanent indoor market of stalls in a warehouse selling inexpensive antiques, outdated goods, curios, etc. 

  • An outdoor temporary market selling inexpensive antiques, curios etc. 

How often have the words co-op and flea market occurred in a corpus of books? (source: Google Ngram Viewer )