show off vs vaunt

show off

verb
  • To attract attention to for the purpose of bragging or personal exhibitionism; to demonstrate a skill, talent or property for the purpose of bragging or personal exhibitionism. 

  • To exhibit the best attributes of something. 

vaunt

verb
  • To boast of; to make a vain display of; to display with ostentation. 

  • To speak boastfully about. 

  • To speak boastfully. 

noun
  • A boast; an instance of vaunting. 

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