chili vs hot 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. 

hot pepper

noun
  • Any of various small peppers of highly notable pungency or heat. 

  • Any of the plants that bear such fruit, especially the species Capsicum annuum and Capsicum frutescens and their numerous subspecies, varieties, or cultivars. 

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