Black vs actor

Black and actor both are nouns.

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

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

Black: a person with African ancestry, "Negro" and "Negroid" are archaic and pejorative today
actor: a person who acts and gets things done

Other hypernyms of Black include doer, worker.

Black (noun)	actor (noun)
a person with African ancestry, "Negro" and "Negroid" are archaic and pejorative today	a theatrical performer
popular child actress of the 1930's (born in 1928)	a person who acts and gets things done
British chemist who identified carbon dioxide and who formulated the concepts of specific heat and latent heat (1728-1799)