Webster's English Dictionary

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whiz

1. whiz or whizz \'hwiz, 'wiz\ vb or whizzed;  or whiz.zing or whiz.zes 
   [imit.] 1: to hum, whir, or hiss like a speeding object (as an arrow or 
   ball) pass ing through air 2: to fly or move swiftly with a whiz  : to 
   cause to whiz; esp : to rotate very rapidly 
2. whiz or whizz n or whiz.zes pl  1: a hissing, buzzing, or whirring sound 
    2: a movement or passage of something accompanied by a whizzing sound 
2. whiz n or whiz.zes [prob. by shortening & alter.] pl  : WIZARD