"whiz" in the noun sense
1. ace, adept, champion, sensation, maven, mavin, virtuoso, genius, hotshot, star, superstar, whiz, whizz, wizard, wiz
someone who is dazzlingly skilled in any field
2. whiz
a buzzing or hissing sound as of something traveling rapidly through the air
"he heard the whiz of bullets near his head"
"whiz" in the verb sense
1. whizz, whiz, whirr, whir, birr, purr
make a soft swishing sound
"the motor whirred"
"the car engine purred"
Source: WordNet® (An amazing lexical database of English)
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