darken vs reveal

darken

verb
  • To cloud, obscure, or perplex; to render less clear or intelligible. 

  • To become gloomy, darker in mood. 

  • To render gloomy, darker in mood. 

  • To become dark or darker (having less light). 

  • To make dark or darker by reducing light. 

  • To make dark or darker in colour. 

  • To blind, impair the eyesight. 

  • To become dark or darker in colour. 

  • To be blinded, lose one’s eyesight. 

  • To make foul; to sully; to tarnish. 

  • To get dark (referring to the sky, either in the evening or as a result of cloud). 

reveal

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. 

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

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

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