Constantine1 Syllabification: (Con·stan·tine)Pronunciation: /ˈkänstənˌtēn/Definition of Constantine a city in northeastern Algeria; population 462,800 (est. 2009). Formerly called Cirta, it was the capital of the Roman province of Numidia. It was destroyed in 311 but was rebuilt by Constantine the Great and given his name. Constantine in other Oxford dictionaries Definition of Constantine in the British & World English dictionary