1. (noun)Istanbul, Stambul, Stamboul, Constantinople the largest city and formercapital of Turkey; rebuilt on the site of ancientByzantium by Constantine I in the fourth century; renamed Constantinople by Constantine who made it the capital of the Byzantine Empire; now the seat of the Eastern Orthodox Church
2. (noun)Constantinople, Fourth Council of Constantinople the council in 869 that condemned Photius who had become the patriarch of Constantinople without approval from the Vatican, thereby precipitating the schism between the eastern and western churches
3. (noun)Constantinople, Third Council of Constantinople the sixth ecumenical council in 680-681 which condemned Monothelitism by defining two wills in Christ, divine and human
4. (noun)Constantinople, Second Council of Constantinople the fifth ecumenical council in 553 which held Origen's writings to be heretic
5. (noun)Constantinople, First Council of Constantinople the second ecumenical council in 381 which added wording about the Holy Spirit to the Nicene Creed
Definitions of 'constantinople'
The Nuttall Encyclopedia
1. constantinople capital of the Turkish empire, on the Bosphorus, situated on a peninsula washed by the Sea of Marmora on the S. and by the Golden Horn on the N., on the opposite side of which creek lie the quarters of Galata and Pera, one of the finest commercial sites in the world; it became the capital of the Roman empire under Constantine the Great, who gave name to it; was capital of the Eastern empire from the days of Theodosius; was taken by the crusaders in 1204, and by Mahomet II. in 1452, at which time the Greek and Latin scholars fled the city, carrying the learning of Greece and Rome with them, an event which led to the revival of learning in Europe, and the establishment of a new era—the Modern—in European history.
Definitions of constantinople 
