whiz
     n 1: someone who is dazzlingly skilled in any field [syn: {ace},
          {adept}, {champion}, {sensation}, {maven}, {mavin}, {virtuoso},
           {genius}, {hotshot}, {star}, {superstar}, {whizz}, {wizard},
           {wiz}]
     2: a buzzing or hissing sound as of something traveling rapidly
        through the air; "he heard the whiz of bullets near his
        head"
     v : make a soft swishing sound; "the motor whirred"; "the car
         engine purred" [syn: {whizz}, {whirr}, {whir}, {birr}, {purr}]
     [also: {whizzing}, {whizzes}, {whizzed}]
Source: WordNet® 2.0