catering vs food

catering

noun
  • The business of providing food and related services; foodservice. 

  • The act of one who caters (to something). 

  • The business of providing such services for special occasions. 

food

noun
  • A foodstuff. 

  • Any solid substance that can be consumed by living organisms, especially by eating, in order to sustain life. 

  • Anything that nourishes or sustains. 

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