How do you pronounce "colosseum"?

In American English: /ˌkɑːləˈsiːəm/ (kahl-uh-SEE-uhm). In British English: /kˌɒləsˈiəm/ (k-ol-UHS-ee). In Canadian English: /ˌkɑːləˈsiːəm/ (kahl-uh-SEE-uhm). In Australian English: /kˌɒləsˈiəm/ (k-ol-UHS-ee).

Is "colosseum" pronounced differently in American and British English?

Yes. In American English it's pronounced /ˌkɑːləˈsiːəm/ (kahl-uh-SEE-uhm), while in British English it's /kˌɒləsˈiəm/ (k-ol-UHS-ee).

How to Pronounce "colosseum"

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colosseum

regional

/ˌkɑːləˈsiːəm/

kahl-uh-SEE-uhm

Syllable Breakdown

kɑːlco·əlos·siːse·əmum

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14