biscuit vs black coffee

biscuit

noun
  • A small, usually soft and flaky bread, generally made with baking soda, which is similar in texture to a scone but which is usually not sweet. 

  • A small, flat, baked good which is either hard and crisp or else soft but firm; a cookie. 

  • The head. 

  • A puck (hockey puck). 

  • A form of unglazed earthenware. 

  • A thin oval wafer of wood or other material inserted into mating slots on pieces of material to be joined to provide gluing surface and strength in shear. 

  • A cracker. 

  • A plastic card bearing the codes for authorizing a nuclear attack. 

  • A handgun, especially a revolver. 

  • A light brown colour. 

  • The "bread" formerly supplied to naval ships, which was made with very little water, kneaded into flat cakes, and slowly baked, and which often became infested with weevils. 

black coffee

noun
  • Coffee served as a beverage without cream or milk. 

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