How do you pronounce "casein"?

In American English: /keɪˈsiːn/ (kay-SEEN). In British English: /kˈasiːn/ (K). In Canadian English: /keɪˈsiːn/ (kay-SEEN). In Australian English: /kˈasiːn/ (K).

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

Yes. In American English it's pronounced /keɪˈsiːn/ (kay-SEEN), while in British English it's /kˈasiːn/ (K).

How to Pronounce "casein"

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casein

regional

/keɪˈsiːn/

kay-SEEN

Syllable Breakdown

keɪca·siːnsein

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14