Byzantium

Definitions

1. An ancient Greek city situated on the Bosporus in modern Turkey, renamed Constantinople in 330 C.E.; modern Istanbul.
   historical
2. A dark shade of purple, close to Tyrian purple and palatinate purple.
   uncountable
3. An ancient Greek empire in Southeastern Europe and Western Asia, with its capital at Constantinople; in full, Byzantine Empire.
   broadly, historical

Equivalents

CEFR level