reveal vs uncover

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. 

uncover

verb
  • To show openly; to disclose; to reveal. 

  • To remove one's hat or cap as a mark of respect. 

  • To reveal the identity of. 

  • To expose the genitalia. 

  • To remove a cover from. 

  • To expose (lines of formation of troops) successively by the wheeling to right or left of the lines in front. 

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