Pisces

nouns

the twelfth sign of the zodiac; the sun is in this sign from about February 19 to March 20
(astrology) a person who is born while the sun is in Pisces
a large faint zodiacal constellation; between Aquarius and Aries
is a part of
a belt-shaped region in the heavens on either side to the ecliptic; divided into 12 constellations or signs for astrological purposes
is an instance of (narrower)
a configuration of stars as seen from the earth
a group of vertebrates comprising both cartilaginous and bony fishes and sometimes including the jawless vertebrates; not used technically
is a member of
fishes; amphibians; reptiles; birds; mammals
is a type of (narrower)
(biology) a group of organisms forming a subdivision of a larger category