bubblegum vs jujube

bubblegum

noun
  • A sweet chewing gum formulated to be stretchy so the chewer can blow bubbles with it. 

  • A type of pop music marked by sweetness, pep and charm (rather than depth or complexity). 

  • A light pink colour, like bubblegum. 

adj
  • Sweet, perky, or youthful. 

  • Tasting like bubblegum. 

jujube

noun
  • A type of candy; specific type varies by country. 

  • A fruit-bearing tree, Ziziphus mauritiana. 

  • The fruit of this tree, fructus jujubae. 

  • The sweet and edible drupes (fruits) of several Mediterranean and African species of small trees. 

  • A fruit-bearing tree, Ziziphus jujuba or Ziziphus zizyphus. 

  • The fruit of this tree. 

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