[whiz] or whizz vb whizzed ; whiz.zing [imit.] vi (1547) 1: to hum, whir, or hiss like a speeding object (as an arrow or ball) passing through air
2: to fly or move swiftly esp. with a whiz ~ vt: to cause to whiz; esp: to rotate very rapidly
[2]whiz or whizz n, pl whiz.zes (1620) 1: a hissing, buzzing, or whirring sound
2: a movement or passage of something accompanied by a whizzing sound [3]whiz n, pl whiz.zes [prob. by shortening & alter.] (1914): wizard 3 "a ~ at math"