avocation vs biz

avocation

noun
  • Pursuits; duties; affairs which occupy one's time; usual employment; vocation. 

  • The calling of a case from an inferior to a superior court. 

  • That which calls one away from one's regular employment or vocation. 

  • A hobby or recreational or leisure pursuit. 

biz

noun
  • Business. 

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