How do you pronounce "planetarium"?

In American English: /ˌplænəˈtɛriːəm/ (plan-uh-TEHR-ee-uhm). In British English: /plˌanɪtˈeəɹiəm/ (pl-AN-it-eh-uhr). In Canadian English: /ˌplænəˈtɛriːəm/ (plan-uh-TEHR-ee-uhm). In Australian English: /plˌanɪtˈeəɹiəm/ (pl-AN-it-eh-uhr).

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

Yes. In American English it's pronounced /ˌplænəˈtɛriːəm/ (plan-uh-TEHR-ee-uhm), while in British English it's /plˌanɪtˈeəɹiəm/ (pl-AN-it-eh-uhr).

How to Pronounce "planetarium"

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planetarium

regional

/ˌplænəˈtɛriːəm/

plan-uh-TEHR-ee-uhm

Syllable Breakdown

plænplan·əe·tɛrtar·iːi·əmum

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14