whirl vs whiz

whirl

verb
  • To rotate, revolve, spin or turn rapidly. 

  • To make something or someone whirl. 

  • To have a sensation of spinning or reeling. 

  • To remove or carry quickly with, or as with, a revolving motion; to snatch. 

noun
  • (usually following “give”) A brief experiment or trial. 

  • Something that whirls. 

  • A rapid series of events. 

  • Dizziness or giddiness. 

  • An act of whirling. 

  • A confused tumult. 

whiz

verb
  • To throw or spin rapidly. 

  • To urinate. 

  • To make a whirring or hissing sound, similar to that of an object speeding through the air. 

  • To rush or move swiftly with such a sound. 

noun
  • Pickpocketing. 

  • An act of urination. 

  • Amphetamine. 

  • A whirring or hissing sound (as above). 

  • Someone who is remarkably skilled at something. 

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