Nouns

(n)Pisces, Pisces the Fishes, Fishthe twelfth sign of the zodiac; the sun is in this sign from about February 19 to March 20
(n)Pisces, Fish(astrology) a person who is born while the sun is in Pisces
(n)Piscesa large faint zodiacal constellation; between Aquarius and Aries
(n)Piscesa group of vertebrates comprising both cartilaginous and bony fishes and sometimes including the jawless vertebrates; not used technically