Definition of Colosseum in English:

Colosseum

proper noun

  • The name since medieval times of the Amphitheatrum Flavium, a vast amphitheater in Rome, begun by Vespasian c.AD 75. It held 50,000 spectators, its sections connected by an elaborate network of stairs, and was the scene of various kinds of combat.

Origin

From Latin, neuter of colosseus gigantic from colossus (see colossus).

Pronunciation:

Colosseum

/ˌkäləˈsēəm/