invest vs reveal

invest

verb
  • To envelop, wrap, cover. 

  • To surround, accompany, or attend. 

  • To spend money, time, or energy on something, especially for some benefit or purpose; used with in. 

  • To commit money or capital in the hope of financial gain. 

  • To ceremonially install someone in some office. 

  • To lay siege to. 

  • To be involved in; to form strong attachments to. 

  • To prepare for lost wax casting by creating an investment mold (a mixture of a silica sand and plaster). 

  • To make investments. 

  • To formally give (someone) some power or authority. 

  • To formally give (power or authority). 

noun
  • An unnamed tropical weather pattern "to investigate" for development into a significant (named) system. 

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. 

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