heel turn vs heel/face turn

heel turn

noun
  • A situation in which someone changes from being a villain into a hero. 

  • A turn executed by shifting weight on to the heel(s). 

  • A ballroom dancing move in which the dancer steps backwards, shifts their weight on to the back foot, and turns on the heel of that foot while holding the other foot close and parallel to it. 

  • A radical change (of mind, opinion, etc.). 

  • An act of turning around abruptly, especially so that one faces the opposite direction. 

  • Synonym of heel/face turn (“a situation in which a wrestler previously identified as a villain changes to being considered a hero”) 

heel/face turn

noun
  • A situation in which a wrestler previously identified as a villain changes to being considered a hero. 

How often have the words heel turn and heel/face turn occurred in a corpus of books? (source: Google Ngram Viewer )