LEO

Leo, Leo the Lion, Lion

(noun) the fifth sign of the zodiac; the sun is in this sign from about July 23 to August 22

Leo

(noun) a zodiacal constellation in northern hemisphere between Cancer and Virgo

Leo, Lion

(noun) (astrology) a person who is born while the sun is in Leo

Source: WordNet® 3.1

Le"o, n. Etym: [L. See Lion.] (Astron.)

1. The Lion, the fifth sign of the zodiac, marked thus

2. A northern constellation east of Cancer, containing the bright star Regulus at the end of the handle of the Sickle. Leo Minor, a small constellation between Leo and the Great Bear.

Source: Webster’s Unabridged Dictionary 1913 Edition