powerhouse vs actor

powerhouse and actor both are nouns.

Word	Noun	Adjective	Verb	Adverb
powerhouse	Yes	No	No	No
actor	Yes	No	No	No

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

Other hypernyms of powerhouse include doer, worker.

powerhouse (noun)	actor (noun)
an electrical generating station	a theatrical performer
a team considered to be the best of its class	a person who acts and gets things done
a highly energetic and indefatigable person