ghosting vs optical illusion

ghosting

noun
  • The blurry appearance of a television picture resulting from interference caused by multipath reception. 

  • Ghost imaging. 

  • The practice of hiding prisoners from inspection from (possibly hostile) outside inspectors. 

  • A form of identity theft in which someone steals the identity, and sometimes even the role within society, of a specific dead person (the "ghost") who is not widely known to be deceased. 

  • A problem with a keyboard where certain simultaneous keypresses trigger the action of a further key that was not in fact pressed. 

  • A method of ending a personal relationship by stopping any contact with the other party and not providing an explanation. 

  • The phenomenon of the writing on one side of a page in a notebook being partly visible on the other side. 

optical illusion

noun
  • An image that is visually deceptive or misleading. 

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