Leo vs Lion

Leo and Lion both are nouns.

Word	Noun	Adjective	Verb	Adverb
Leo	Yes	No	No	No
Lion	Yes	No	No	No

As nouns, Leo and Lion are synonyms defined as:

Leo and Lion: the fifth sign of the zodiac; the sun is in this sign from about July 23 to August 22

Other synonyms of Leo include Leo the Lion.

As nouns, Leo and Lion are synonyms defined as:

Leo (noun)	Lion (noun)
the fifth sign of the zodiac; the sun is in this sign from about July 23 to August 22	the fifth sign of the zodiac; the sun is in this sign from about July 23 to August 22
a zodiacal constellation in Northern Hemisphere between Cancer and Virgo	(astrology) a person who is born while the sun is in Leo
(astrology) a person who is born while the sun is in Leo