How do you pronounce "octagonal"?

In American English: /ɑːkˈtægənəl/ (ahk-TAG-uhn-uhl). In British English: /ˈɒktɐɡənəl/ (OKT-ɐg-uhn). In Canadian English: /ɑːkˈtægənəl/ (ahk-TAG-uhn-uhl). In Australian English: /ˈɒktɐɡənəl/ (OKT-ɐg-uhn).

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

Yes. In American English it's pronounced /ɑːkˈtægənəl/ (ahk-TAG-uhn-uhl), while in British English it's /ˈɒktɐɡənəl/ (OKT-ɐg-uhn).

How to Pronounce "octagonal"

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octagonal

regional

/ɑːkˈtægənəl/

ahk-TAG-uhn-uhl

Syllable Breakdown

ɑːkoc·tægtag·əno·əlnal

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14