icebox vs refrigerator

icebox

noun
  • A compartment in a refrigerator that is colder than the rest of the refrigerator and is used as a freezer. 

  • A box or compartment containing ice, typically used to keep provisions cool. 

  • A prison. 

  • A morgue. 

adj
  • agreeable, awesome. (as a superlative of cool) 

refrigerator

noun
  • A household appliance used for keeping food fresh by refrigeration (short form fridge). 

  • One who has a chilling influence. 

  • A similar device used to keep non-food items cold, such as blood, photographic film, drugs, or pharmaceuticals like insulin. 

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