commercial bank vs fund

commercial bank

noun
  • A bank whose chief business is accepting demand deposits and making short-term loans. 

fund

noun
  • A money-management operation, such as a mutual fund. 

  • A sum or source of money. 

  • An organization managing such money. 

  • A large supply of something to be drawn upon. 

verb
  • To form a debt into a stock charged with interest. 

  • To place (money) in a fund. 

  • To pay or provide money for. 

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