or formerly Constantinople or ancient Byzantium geographical name city NW Turkey on the Bosporus & Sea of Marmara; former capital of Turkey & (as Constantinople) of Ottoman Empire population 6,620,241
ISTANBUL
Meaning of ISTANBUL in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012