side dish vs snack

side dish

noun
  • A serving of food meant as an accompanying dish. 

snack

noun
  • A light meal. 

  • An item of food eaten between meals. 

  • A very sexy and attractive person. 

verb
  • To eat a light meal. 

  • To eat between meals. 

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