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