Water Bearer vs doer

Water Bearer and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
Water Bearer	Yes	No	No	No
doer	Yes	No	No	No

As nouns, doer is a hypernym of Water Bearer; that is, doer is a word with a broader meaning than Water Bearer:

Other hypernyms of Water Bearer include actor, worker.

Water Bearer (noun)	doer (noun)
the eleventh sign of the zodiac; the sun is in this sign from about January 20 to February 18	a person who acts and gets things done
(astrology) a person who is born while the sun is in Aquarius