How do you pronounce "octahedron"?

In American English: /ˌɑːktəˈhiːdrən/ (ahkt-uh-HEEDR-uhn). In British English: /ˌɒktɐhˈiːdɹən/ (okt-ⱯH-eedr). In Canadian English: /ˌɑːktəˈhiːdrən/ (ahkt-uh-HEEDR-uhn). In Australian English: /ˌɒktɐhˈiːdɹən/ (okt-ⱯH-eedr).

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

Yes. In American English it's pronounced /ˌɑːktəˈhiːdrən/ (ahkt-uh-HEEDR-uhn), while in British English it's /ˌɒktɐhˈiːdɹən/ (okt-ⱯH-eedr).

How to Pronounce "octahedron"

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octahedron

regional

/ˌɑːktəˈhiːdrən/

ahkt-uh-HEEDR-uhn

Syllable Breakdown

ɑːktoc·əta·hiːdrhe·əndron

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14