Added 9 October 2026 aquarius noun Categories: PeopleNatureRare Words noun ! Definition from WordNet 3.1, Princeton University. More about aquarius at Wordnik → Where our words come from → (astrology) a person who is born while the sun is in Aquarius. A zodiacal constellation in the southern hemisphere; between Capricornus and Pisces. The eleventh sign of the zodiac; the sun is in this sign from about January 20 to February 18. Related Words: piscesaquariumvirgogeminihydraaurigaapuszosmagirl Back to today's word