graveyard vs morgue

graveyard

noun
  • A tract of land in which the dead are buried. 

  • The discard pile, in some trading card games. 

  • A team where players are sent when they are not useful, or a team where players become useless if sent there. 

  • Synonym of suicide (“beverage combining all available flavors at a soda fountain”) 

morgue

noun
  • A building or room where dead bodies are kept before their proper burial or cremation, (now) particularly in legal and law enforcement contexts. 

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