Definition of Constantine

Noun: Constantine  'kón-stun,teen

1. A walled city in northeastern Algeria to the east of Algiers; was destroyed in warfare in the 4th century and rebuilt by Constantine I
    
2. Emperor of Rome, the first to convert to Christianity (c 272-337)
   - Constantine I, Constantine the Great, Flavius Valerius Constantinus

See also:
Constantina
Constantinople