Sagittarius

Short definition from Wiktionary

Proper noun

1. 1
   A constellation of the zodiac supposedly shaped like a centaur who is an archer. It contains the stars Kaus Australis and Nunki.
2. 2
   The zodiac sign for the archer, ruled by Jupiter and covering November 23 - December 21 (tropical astrology) or December 16 - January 14 (sidereal astrology).

Noun

1. 1
   Someone with a Sagittarius star sign.