listen vs soliloquize

listen

noun
  • An instance of listening. 

verb
  • To pay attention to a sound or speech. 

  • To expect or wait for a sound, such as a signal. 

  • To accept advice or obey instruction; to agree or assent. 

soliloquize

verb
  • To perform a soliloquy; (of a character) to talk to oneself. 

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