How do you pronounce "millennium"?

In American English: /məˈlɛniːəm/ (muh-LEHN-ee-uhm). In British English: /mɪlˈɛnɪəm/ (mil-EHN-i-uhm). In Canadian English: /məˈlɛniːəm/ (muh-LEHN-ee-uhm). In Australian English: /mɪlˈɛniəm/ (mil-EHN-ee-uhm).

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

Yes. In American English it's pronounced /məˈlɛniːəm/ (muh-LEHN-ee-uhm), while in British English it's /mɪlˈɛnɪəm/ (mil-EHN-i-uhm).

How to Pronounce "millennium"

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millennium

regional

/məˈlɛniːəm/

muh-LEHN-ee-uhm

Syllable Breakdown

məmil·lɛnlen·iːni·əmum

Source

90%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14