abyss vs rift

abyss

noun
  • A bottomless or unfathomed depth, gulf, or chasm; hence, any deep, immeasurable; any void space. 

  • Moral depravity; vast intellectual or moral depth. 

  • The abyssal zone. 

  • An impending catastrophic happening. 

  • Anything infinite, immeasurable, or profound. 

  • The center of an escutcheon. 

  • Hell; the bottomless pit; primeval chaos; a confined subterranean ocean. 

  • A difference, especially a large difference, between groups. 

rift

noun
  • A chasm or fissure. 

  • A break in the clouds, fog, mist etc., which allows light through. 

  • A shallow place in a stream; a ford. 

verb
  • To form a rift; to split open. 

  • To belch. 

  • To cleave; to rive; to split. 

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