herald vs reveal

herald

noun
  • A harbinger, giving signs of things to come. 

  • A handbill consisting of an advertisement. 

  • An official whose speciality is heraldry, especially one between the ranks of pursuivant and king-of-arms. 

  • A messenger, especially one bringing important news. 

  • A moth of the species Scoliopteryx libatrix. 

verb
  • To proclaim or announce an event. 

  • To greet something with excitement; to hail. 

reveal

noun
  • A revelation; an uncovering of what was hidden in the scene or story. 

  • The outer side of a window or door frame. 

verb
  • To communicate that which could not be known or discovered without divine or supernatural instruction. 

  • To uncover; to show and display that which was hidden. 

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