How do you pronounce "ion"?

In American English: /ˈaɪˌɑːn/ (EYE-ahn). In British English: /ˈaɪɒn/ (EYE-on). In Canadian English: /ˈaɪˌɑːn/ (EYE-ahn). In Australian English: /ˈaɪɒn/ (EYE-on).

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

Yes. In American English it's pronounced /ˈaɪˌɑːn/ (EYE-ahn), while in British English it's /ˈaɪɒn/ (EYE-on).

How to Pronounce "ion" | pronounce.how

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ion

regional

/ˈaɪˌɑːn/

EYE-ahn

Syllable Breakdown

aɪi·ɑːnon

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14