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