dancer vs entertainer

dancer

noun
  • A person who dances, usually as a hobby, an occupation, or a profession. 

  • A stripper. 

entertainer

noun
  • A person who entertains others, esp. as a profession, as a singer, actor, presenter, dancer, musician, magician, comedian, etc. 

  • Someone who puts on a show for the entertainment or enjoyment of others. 

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