bleacher vs salon

bleacher

noun
  • The tiered seating provided for the audience at a television filming. 

  • One who, or that which, bleaches. 

  • A stand of tiered planks used as seating for spectators, often outdoors. 

salon

noun
  • A large room, especially one used to receive and entertain guests. 

  • A beauty salon or similar establishment. 

  • An art gallery or exhibition; especially the Paris salon or autumn salon. 

  • A gathering of people for a social or intellectual meeting. 

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