hard stop vs hiatus

hard stop

noun
  • Synonym of full stop 

  • A mechanical device that limits the travel of a mechanism. 

  • A tactic used by armed police to stop a vehicle believed to contain dangerous criminals. 

  • A definite time when someone must end a task in order to meet another time commitment. 

hiatus

noun
  • An interruption, break or pause. 

  • A gap in a series, making it incomplete. 

  • An opening in an organ. 

  • A gap in geological strata. 

  • A syllable break between two vowels, without an intervening consonant. (Compare diphthong.) 

  • An unexpected break from work. 

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