How do you spell Pisces

Available Definitions:
1)  n. pl. - The twelfth sign of the zodiac, marked / in almanacs.
2)  n. pl. - A zodiacal constellation, including the first point of Aries, which is the vernal equinoctial point; the Fish.
3)  n. pl. - The class of Vertebrata that includes the fishes. The principal divisions are Elasmobranchii, Ganoidei, and Teleostei.