Leo vs actor

Leo and actor both are nouns.

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

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

Other hypernyms of Leo include doer, worker.

Leo (noun)	actor (noun)
the fifth sign of the zodiac; the sun is in this sign from about July 23 to August 22	a theatrical performer
a zodiacal constellation in Northern Hemisphere between Cancer and Virgo	a person who acts and gets things done
(astrology) a person who is born while the sun is in Leo