chain store vs warehouse

chain store

noun
  • A retail outlet that is one of a group of similar establishments having common format, contents, ownership and management. 

warehouse

noun
  • A place for storing large amounts of products. In logistics, a place where products go to from the manufacturer before going to the retailer. 

verb
  • To confine (a person) to an institution for a long period. 

  • To acquire and then shelve, simply to prevent competitors from acquiring it. 

  • To store in a warehouse or similar. 

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