beep vs invoke

beep

verb
  • To telephone a person, only allowing the phone to ring once, in order to request a call back. 

  • To sound (something that makes a beep). 

  • To contact (someone via) a pager device. 

  • To produce a beep. 

  • To have sexual intercourse with - referring to the bleep tone used to censor obscene words in broadcasts 

noun
  • A message sent to a pager device. 

  • A short, electronically produced tone. 

  • The sound produced by the horn of a car, or any similar sound. 

invoke

verb
  • To call upon (a person, a god) for help, assistance or guidance. 

  • To appeal for validation to a (notably cited) authority. 

  • To cause (a program or subroutine) to execute. 

  • To solicit, petition for, appeal to a favorable attitude. 

  • To conjure up with incantations. 

  • To call to mind (something) for some purpose. 

  • To bring about as an inevitable consequence. 

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