ballroom vs guildhall

ballroom

noun
  • A large room used for dancing and banquets. 

  • A type of elegant dance. 

verb
  • To take part in ballroom dancing. 

guildhall

noun
  • A hall where a guild or corporation usually assembles. 

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