ballroom vs bleacher

ballroom

noun
  • A large room used for dancing and banquets. 

  • A type of elegant dance. 

verb
  • To take part in ballroom dancing. 

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. 

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