whiz

Whiz is defined as to make a humming sound while speeding past.

(verb)

An example of to whiz is a humming bird flying by.

The definition of a whiz is a person who is very skilled at something.

(noun)

An example of a whiz is a person who can spell just about any word, a spelling whiz.

See whiz in Webster's New World College Dictionary

intransitive verb whizzed, whizzing

to move swiftly with or as with a buzzing or hissing sound: the bus whizzed by him
to make the buzzing or hissing sound of something moving swiftly through the air
Slang to urinate

Origin: echoic

transitive verb

to cause to whiz, esp. by rotating rapidly

noun

a whizzing sound or movement
☆
Origin: see wiz
1. Slang a person who is very quick, adroit, or skilled at something; expert: a whiz at football
2. Slang something strikingly excellent, attractive, etc.: a whiz of a car
Slang the act of urinating: often in the phrase

See whiz in American Heritage Dictionary 4

also whizz

verb whizzed whizzed, whiz·zing, whiz·zes

verb, intransitive

To make a whirring or hissing sound, as of an object speeding through air.
To move swiftly with or as if with such a sound; rush: whizzed past on a ten-speed bike; as the days whizzed by.

verb, transitive

To throw or spin rapidly: The pitcher whizzed the ball to first.

noun pl. whiz·zes