Aquarius is one of these signs. ... The word Aquarius can be used as a noun to refer to someone who is born during this time, as in I was born in early February, so I'm an Aquarius. The word Aquarian can be used to mean the same thing. It can also be used as an adjective form of Aquarius.

Is an Aquarian an adjective?

An Aquarian is someone whose zodiac sign is Aquarius. Aquarian can also be used as an adjective to describe something related to the zodiac sign or to the constellation that it's named for.

Is Aquarius a proper noun?

A constellation of the zodiac, supposedly shaped like a water carrier. The Zodiac sign for the water carrier, covering January 21 through February 19.