doom vs nightmare

doom

noun
  • A feeling of danger, impending danger, darkness, or despair. 

  • An undesirable fate; an impending severe occurrence or danger that seems inevitable. 

  • The Last Judgment; or, an artistic representation thereof. 

  • Destiny, especially terrible. 

  • Death. 

verb
  • To destine; to fix irrevocably the ill fate of. 

  • To pronounce judgment or sentence on; to condemn. 

nightmare

noun
  • Any bad, miserable, difficult or terrifying situation or experience that arouses anxiety, terror, agony or great displeasure. 

  • A very bad or frightening dream. 

  • A feeling of extreme anxiety or suffocation experienced during sleep; Sleep paralysis. 

verb
  • To have a nightmare. 

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