chili vs chili pepper

chili

noun
  • The pungent, spicy fresh or dried fruit of any of several cultivated varieties of capsicum peppers, used in cooking. 

  • Cincinnati chili. 

  • Powdered chili pepper, used as a spice or flavouring in cooking. 

  • A spicy stew of chicken or paneer, capsicum and onion, eaten as an appetizer. 

  • A dish made with chili peppers and other ingredients, such as beans and beef. 

chili pepper

noun
  • Any fruit of a plant of the botanical genus Capsicum, which has a spicy/burning flavour because it contains capsaicin. (Not all chili peppers are particularly spicy, but all true chili peppers contain some capsaicin, in contrast to e.g. the bell pepper, which is not a true chili pepper and does not.) 

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