caper vs pole-vault

caper

verb
  • To leap or jump about in a sprightly or playful manner. 

  • To jump as part of a dance. 

  • To engage in playful behaviour. 

noun
  • Playful behaviour. 

  • The pungent grayish green flower bud of the European and Oriental caper (Capparis spinosa), which is pickled and eaten. 

  • The capercaillie. 

  • A playful leap or jump. 

  • A crime, especially an elaborate heist, or a narrative about such a crime. 

  • A vessel formerly used by the Dutch; privateer. 

  • A plant of the genus Capparis. 

  • A jump while dancing. 

  • A prank or practical joke. 

pole-vault

verb
  • To perform a pole vault 

  • To vault over something using a pole vault 

How often have the words caper and pole-vault occurred in a corpus of books? (source: Google Ngram Viewer )