whizz(noun, verb) noun1. someone who is dazzlingly skilled in any fieldSimilar word(s): ace, adept, champion, genius, hotshot, maven, mavin, sensation, star, superstar, virtuoso, whiz, wiz, wizardDefinition categories: person, expert verb1. make a soft swishing soundSimilar word(s): birr, purr, whir, whirr, whizDefinition categories: perception, go, sound2. move along very quicklySimilar word(s): zoomDefinition categories: motion, hurry, speed, zip