department store vs stock exchange

department store

noun
  • A large store containing many different departments, each of which deals in the sale of different goods or services. 

stock exchange

noun
  • A building that trades stocks in of companies for money and vice versa. 

  • An organisation that trades stocks in of companies for money and vice versa. 

How often have the words department store and stock exchange occurred in a corpus of books? (source: Google Ngram Viewer )