We found 26 dictionaries that define the word Constantinople:

General (19 matching dictionaries)

1. Constantinople: Merriam-Webster
2. Constantinople: Oxford Learner's Dictionaries
3. Constantinople: American Heritage Dictionary of the English Language
4. Constantinople: Collins English Dictionary
5. Constantinople: Vocabulary.com
6. Constantinople: Wordnik
7. Constantinople: Wiktionary
8. Constantinople: Webster's New World College Dictionary, 4th Ed.
9. Constantinople: The Wordsmyth English Dictionary-Thesaurus
10. Constantinople: Infoplease Dictionary
11. Constantinople: Dictionary.com
12. Constantinople: Online Etymology Dictionary
13. Constantinople (Turkey), Constantinople (book), Constantinople (disambiguation), Constantinople (ensemble), Constantinople (modern city), Constantinople (song), Constantinople: Wikipedia, the Free Encyclopedia
14. Constantinople: Rhymezone
15. Constantinople: E Cobham Brewer, The Reader's Handbook
16. constantinople: FreeDictionary.org
17. constantinople: Mnemonic Dictionary
18. Constantinople: TheFreeDictionary.com
19. constantinople: Longman Dictionary of Contemporary English

Art (1 matching dictionary)

20. Glossary of Stamp Collecting Terms (No longer online)

Computing (1 matching dictionary)

21. Constantinople: Encyclopedia

Miscellaneous (3 matching dictionaries)

22. Arms and Armour (No longer online)
23. Encyclopedia of the Orient (No longer online)
24. Third Eye's Paranormal (No longer online)

Science (1 matching dictionary)

25. Archaeology Wordsmith (No longer online)

Slang (1 matching dictionary)

26. constantinople: Urban Dictionary

(Note: See constantinoples as well.)

Definitions from Wiktionary (Constantinople) ▸ noun:  Name of present-day Istanbul from 330–1930 C.E.. Previously known as Byzantium. Similar: Istanbul, Stamboul, stambul, Constantinopolis, Konstantinoupolis, Byzantium, Bizantium, Byzantine Empire, New Rome, Adrianopolis, more... Opposite: variable, fluctuating, inconsistent, unstable, changeable Phrases: First Council of Constantinople, Second Council of Constantinople, Third Council of Constantinople, fourth council of constantinople, latin empire of constantinople, more... Adjectives: opposite, century, old, new, modern, ancient, distant, imperial, medieval, second, nicaea Colors:     byzantium,     gold,     imperial purple,     sapphire,     emerald, more... ▸ Word origin ▸ Words similar to Constantinople ▸ Usage examples for Constantinople ▸ Idioms related to Constantinople ▸ Wikipedia articles (New!) ▸ Popular adjectives describing Constantinople ▸ Words that often appear near Constantinople ▸ Rhymes of Constantinople ▸ Invented words related to Constantinople