reveal vs unveil

reveal

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

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

noun
  • The outer side of a window or door frame. 

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

unveil

verb
  • To remove a veil from; to uncover; to reveal something hidden. 

  • To remove a veil; to reveal oneself. 

  • to show, especially for the first time 

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