To move very fast with a whistling or buzzing sound, like something zooming through the air.
From onomatopoeia, created to imitate the sound of something moving rapidly through air. The term emerged in English around the 17th century as a representation of the sound itself.
Whizz is pure onomatopoeia—the word itself sounds like what it describes, and it's often used to mean 'whiz kid' (a brilliant, fast-thinking person), as if genius moves at the speed of sound!
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