Aquarius vs actor

Aquarius and actor both are nouns.

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

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

Other hypernyms of Aquarius include doer, worker.

Aquarius (noun)	actor (noun)
the eleventh sign of the zodiac; the sun is in this sign from about January 20 to February 18	a theatrical performer
a zodiacal constellation in the Southern Hemisphere; between Capricornus and Pisces	a person who acts and gets things done
(astrology) a person who is born while the sun is in Aquarius