Aquarius vs worker

Aquarius and worker both are nouns.

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

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

Other hypernyms of Aquarius include actor, doer.

Aquarius (noun)	worker (noun)
the eleventh sign of the zodiac; the sun is in this sign from about January 20 to February 18	sterile member of a colony of social insects that forages for food and cares for the larvae
a zodiacal constellation in the Southern Hemisphere; between Capricornus and Pisces	a person who works at a specific occupation
(astrology) a person who is born while the sun is in Aquarius	a member of the working class (not necessarily employed)
	a person who acts and gets things done