protect vs reveal

protect

verb
  • To keep safe; to defend; to guard; to prevent harm coming to. 

  • To book a passenger on a later flight if there is a chance they will not be able to board their earlier reserved flight. 

reveal

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

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

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 protect and reveal occurred in a corpus of books? (source: Google Ngram Viewer )