COLISEUM Meaning of COLISEUM in English Col ‧ i ‧ se ‧ um /ˌkɒləˈsiːəm, ˌkɒlɪˈsiːəm $ ˌkɑː-/ BrE AmE ⇨ ↑ Colosseum Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012