marketplace vs showing

marketplace

noun
  • A place or sphere for the exchange of anything, such as ideas or fashions. 

  • The world of commerce and trade. 

  • The space, actual or metaphorical, in which a market operates. 

  • An open area in a town housing a public market. 

showing

noun
  • An occasion when something is shown. 

  • A result, a judgement. 

How often have the words marketplace and showing occurred in a corpus of books? (source: Google Ngram Viewer )