whirring vs whizzing

whirring

adj

  • Spinning rapidly. 

  • Producing a whirr; giving off a whirring noise. 

noun

  • A whirr, the sounds of a whirr. 

whizzing

adj

  • Spinning rapidly. 

  • Producing a whizz; giving off a whizzing noise. 

noun

  • The sound or action of something that whizzes. 

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