/ Dictionary / Index L Leo: Meaning and Definition of Find definitions for: Le•o Pronunciation: (lē'ō), [key] — gen. Le•o•nis the Lion, a zodiacal constellation between Virgo and Cancer, containing the bright star Regulus. the fifth sign of the zodiac: the fixed fire sign. See illus. underzodiac. a person born under this sign, usually between July 23rd and August 22nd. a male given name: from a Greek word meaning “lion.” Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: leo (Thesaurus) Lenya Leo I Related Content Daily Word Quiz: supine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language