fade out vs flicker

fade out

verb
  • To slowly disappear. 

  • To fade from a cut to black in a movie. 

  • To decrease in volume, such as at the end of a song, until there is only silence. 

noun
  • A type of transition used in film, usually at the end of a scene, involving a fade to black from the cut. 

flicker

verb
  • To keep going on and off; to appear and disappear for short moments; to flutter. 

  • To flutter or flap. 

  • To burn or shine unsteadily, or with a wavering light. 

noun
  • Any of certain small woodpeckers, especially of the genus Colaptes. 

  • One who flicks. 

  • An unsteady flash of light. 

  • A short moment. 

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