Constantinople

American  

[kon-stan-tn-oh-puhl] / ˌkɒn stæn tnˈoʊ pəl /

noun

1. former name of Istanbul.

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Constantinople British  

/ ˌkɒnstæntɪˈnəʊpəl /

noun

1. the former name (330–1926) of Istanbul

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Constantinople Cultural  

1. A city founded by the Roman emperor Constantine the Great as capital of the eastern part of the Roman Empire. Constantine ruled over both parts of the empire from Constantinople, which was later capital of the Byzantine Empire. Constantinople was conquered by Turkish forces in the fifteenth century.

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Today, under the name of Istanbul, Constantinople is the largest city in Turkey.

Example Sentences

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Constantinople

Constantinople had a superb strategic position and massive ancient defenses: a huge moat, an outer wall, and an inner wall studded with towers.

From The Wall Street Journal ● Aug. 5, 2026

The Gallipoli campaign, part of a British-led effort to defeat the Ottoman Empire, aimed to secure a naval route through the Dardanelles from the Mediterranean Sea to Constantinople, now Istanbul, in Turkey.

From BBC ● Apr. 25, 2026

He was joined by clergymen including Ecumenical Patriarch Bartholomew of Constantinople, the most senior bishop in Eastern Orthodoxy.

From The Wall Street Journal ● Nov. 28, 2025

"All neuropsychiatric disorders show fluctuations in symptom severity over hormonal states, suggesting that a better understanding of how hormones influence neural circuits might reveal what causes these diseases," notes Constantinople.

From Science Daily ● Nov. 21, 2025

Regiomontanus was one of the first to benefit from the supply of ancient Greek texts that reached Italy after the fall of Constantinople.

From "The Invention of Science" by David Wootton