cliffhanger vs squeaker

cliffhanger

noun
  • An outcome which is awaited with keen anticipation, especially one which is delayed for a period of time or which is not known until the last minute. 

  • An ending or stopping point calculated to leave a story unresolved, in order to create suspense. 

squeaker

noun
  • A game or election won by a narrow margin. 

  • A young bird; a cheeper. 

  • A party toy that uncoils with a squeaking sound when blown; a party puffer. 

  • An Australian grey crow-shrike or grey currawong (Strepera versicolor plumbea). 

  • A piglet of the wild boar. 

  • An informer. 

  • Any of family Arthroleptidae, of frogs. 

  • Any of genus Synodontis, of catfish. 

  • An act of flatulence; a fart. 

  • One who or that which squeaks. 

  • A young user on a voice chat system who has a high-pitched voice. 

  • A squab or young domestic pigeon still in the nest. 

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