whizz-kid vs actor

whizz-kid and actor both are nouns.

Word	Noun	Adjective	Verb	Adverb
whizz-kid	Yes	No	No	No
actor	Yes	No	No	No

As nouns, actor is a hypernym of whizz-kid; that is, actor is a word with a broader meaning than whizz-kid:

Other hypernyms of whizz-kid include doer, worker.

whizz-kid (noun)	actor (noun)
someone whose career progresses rapidly	a theatrical performer
	a person who acts and gets things done