How do you pronounce "heroin"?

In American English: /ˈhɛroʊən/ (HEHR-oh-uhn). In British English: /hˈɛɹəʊɪn/ (H-ehr-oh). In Canadian English: /ˈhɛroʊən/ (HEHR-oh-uhn). In Australian English: /hˈɛɹəʊˌɪn/ (H-ehr-oh).

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

Yes. In American English it's pronounced /ˈhɛroʊən/ (HEHR-oh-uhn), while in British English it's /hˈɛɹəʊɪn/ (H-ehr-oh).

How to Pronounce "heroin"

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heroin

regional

/ˈhɛroʊən/

HEHR-oh-uhn

Syllable Breakdown

hɛrhe·oʊro·ənin

Source

90%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14