living dead vs walker

living dead

noun
  • The undead; zombies, vampires, etc. 

adj
  • Existing in stasis, without meaningful activity or development. 

walker

noun
  • A zombie. 

  • A batsman or batswoman who directly walks off the field when out without waiting for the umpire's decision. 

  • A male escort who accompanies a woman to an event. 

  • A walking frame or baby walker. 

  • A prostitute, streetwalker. 

  • A kind of military robot or mecha with legs for locomotion. 

  • The agent noun of to walk: a person who walks or a thing which walks, especially a pedestrian or a participant in a walking race. 

  • A shoe designed for comfortable walking. 

  • A gressorial bird. 

  • A forester. 

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