Bull vs actor

Bull and actor both are nouns.

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

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

Other hypernyms of Bull include doer, worker.

Bull (noun)	actor (noun)
the second sign of the zodiac; the sun is in this sign from about April 20 to May 20	a theatrical performer
(astrology) a person who is born while the sun is in Taurus	a person who acts and gets things done