crypt vs graveyard

crypt

noun
  • An underground vault, especially one beneath a church that is used as a burial place. 

  • Any of the genus Cryptopus of orchids of Madagascar and Mauritius. 

  • A small pit or cavity in the surface of an organ or other structure. 

  • Any of the genus Cryptocoryne of aquatic plants of southern and southeastern Asia. 

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”) 

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