twirl vs whirr

twirl

verb
  • To perform a twirl. 

  • To twist round. 

  • To pitch. 

  • To rotate rapidly. 

noun
  • A little twist of some substance; a swirl. 

  • A movement where a person spins round elegantly; a pirouette. 

  • Any rotating movement; a spin. 

  • A prison guard. 

whirr

verb
  • To move or vibrate (something) with a buzzing sound. 

  • To make a sibilant buzzing or droning sound. 

  • To cause (something) to make such a sound. 

noun
  • A sibilant buzz or vibration; the sound of something in rapid motion. 

  • A bustle of noise and excitement. 

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