Aries

Short definition from Wiktionary

Proper noun

1. 1
   A constellation of the zodiac supposedly shaped like a ram.
2. 2
   The zodiac sign for the ram, ruled by Mars and covering March 20 – April 20 (tropical astrology) or April 15 – May 15 (sidereal astrology).
3. 3
   A surname.

Noun

1. 1
   Someone with an Aries star sign.