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
Origin: see wiz
See whiz in American Heritage Dictionary 4
also whizzverb whizzed whizzed, whiz·zing, whiz·zes verb, intransitive
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