whiz /ˈhwɪz, ˈwɪz/
  子彈等在空中掠過的聲音,精明的人,專家(vt.)(vi.)(使)颼颼作聲
  Whiz v. i. [imp. & p. p. Whizzed p. pr. & vb. n. Whizzing.]  To make a humming or hissing sound, like an arrow or ball flying through the air; to fly or move swiftly with a sharp hissing or whistling sound.  [Written also whizz.]
     It flew, and whizzing, cut the liquid way.   --Dryden.
  Whiz, n. A hissing and humming sound.
     Like the whiz of my crossbow.   --Coleridge.
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  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]