whiz
1. [ verb ] make a soft swishing sound, as of a motor working or wings flapping
Synonyms: whir whirr birr purr whizz
Related terms: go whir
2. [ noun ] someone who is dazzlingly skilled in any field
Synonyms: star ace wizard virtuoso sensation hotshot genius whizz wiz maven mavin superstar champion adept
Related terms: expert track_star star
3. [ noun ] a buzzing or hissing sound as of something traveling rapidly through the air
Examples:

"he heard the whiz of bullets near his head"

Related terms: sound whizz
Similar spelling:   whizz
  wheezy
  wheeze
  Whig