call back vs void

call back

noun
  • Request for a second interview or audition, following a successful initial interview. 

verb
  • To request someone's return. 

  • To telephone someone again at a more convenient time. 

  • To return to a shop or residence one has previously visited. 

void

adj
  • That does not return a value; a procedure. 

  • Containing nothing; empty; not occupied or filled. 

  • Having no incumbent; unoccupied; said of offices etc. 

  • Being without; destitute; devoid. 

  • Containing no immaterial quality; destitute of mind or soul. 

  • Not producing any effect; ineffectual; vain. 

  • Of no legal force or effect, incapable of confirmation or ratification. 

verb
  • To make invalid or worthless. 

  • To throw or send out; to evacuate; to emit; to discharge. 

  • To empty. 

noun
  • An empty place; A location that has nothing useful. 

  • An empty space; a vacuum. 

  • A collection of adjacent vacancies inside a crystal lattice. 

  • A pocket of vapour inside a fluid flow, created by cavitation. 

  • An extended region of space containing no galaxies. 

  • An empty space between floors or walls, including false separations and planned gaps between a building and its facade. 

  • A black cat. 

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