Definition of Byzantium in English:

Byzantium

proper noun

  • An ancient Greek city, founded in the 7th century bc, at the southern end of the Bosporus, site of the modern city of Istanbul. It was rebuilt by Constantine the Great in ad 324–30 as Constantinople.

Pronunciation

Byzantium

/bɪˈzantɪəm//bʌɪˈzantɪəm/