There are 2 definitions of Leo in English:

Leo1

Syllabification: Le·o
Pronunciation: /ˈlēō
 
/
1The name of 13 popes, notably:
1.1 Leo I ( died 461), pope from 440 and doctor of the Church; known as Leo the Great; canonized as St. Leo I. He defined the doctrine of the Incarnation at the Council of Chalcedon (451) and extended the power of the Roman see to Africa, Spain, and Gaul. Feast day (Eastern Church) February 18; (Western Church) April 11.
1.2 Leo X ( 1475–1521), pope from 1513; born Giovanni de' Medici. He excommunicated Martin Luther and bestowed the title of Defender of the Faith on Henry VIII of England. He was a noted patron of learning and of the arts.

Definition of Leo in:

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Word of the day apposite
Pronunciation: ˈapəzɪt
adjective
apt in the circumstances or relation to something

There are 2 definitions of Leo in English:

Leo2

Syllabification: Le·o
Pronunciation: /
 
ˈlēō/
1 Astronomy A large constellation (the Lion), said to represent the lion slain by Hercules. It contains the bright stars Regulus and Denebola and numerous galaxies.
1.1 (as genitive Leonis /lēˈōnis/) Used with a preceding letter or numeral to designate a star in this constellation: the star Omicron Leonis
2 Astrology The fifth sign of the zodiac, which the sun enters about July 23.
2.1 (a Leo) (plural Leos) A person born when the sun is in the sign of Leo.
More example sentences
  • Like all the fire signs, Leos are idealistic and don't hold back from expressing their passion.
  • Statistics show many accomplished actors in Hollywood and television are Leos, and many have Moon signs in Cancer as well.
  • Most Leos dream of getting rich by just being themselves.

Origin

Latin.

Derivatives

Leonian

Pronunciation: /lēˈōnēən/
noun & adjective

Definition of Leo in: