Apple vs zombie

Apple

noun
  • A computer produced by the company Apple Inc. 

name
  • A nickname for New York City, usually “the Big Apple”. 

  • A multimedia corporation (Apple Corps) and record company (Apple Records) founded by the Beatles. 

  • A female given name from English. 

  • A surname. 

  • The company Apple Inc., formerly Apple Computer, that produces computers and other digital devices, and sells and produces multimedia content. 

zombie

noun
  • A computer affected by malware which causes it to do whatever the attacker wants it to do without the user's knowledge. 

  • A cocktail of rum and fruit juices. 

  • A human being in a state of extreme mental exhaustion. 

  • Marijuana, or similar drugs. 

  • A conscripted member of the Canadian military during World War II who was assigned to home defence rather than to combat in Europe. 

  • A hypothetical being that is indistinguishable from a normal human being except in that it lacks conscious experience, qualia, or sentience. 

  • An apathetic or slow-witted person. 

  • A person, usually undead, animated by unnatural forces (such as magic), with no soul or will of his/her own. 

  • A process or task which has terminated but has not been removed from the list of processes, typically because it has an unresponsive parent process. 

  • An information worker who has signed a nondisclosure agreement. 

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