How do you pronounce "sinus"?

In American English: /ˈsaɪnəs/ (SEYEN-uhs). In British English: /sˈaɪnəs/ (S-eyen). In Canadian English: /ˈsaɪnəs/ (SEYEN-uhs). In Australian English: /sˈaɪnəs/ (S-eyen).

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

Yes. In American English it's pronounced /ˈsaɪnəs/ (SEYEN-uhs), while in British English it's /sˈaɪnəs/ (S-eyen).

How to Pronounce "sinus"

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sinus

rare

/ˈsaɪnəs/

SEYEN-uhs

Syllable Breakdown

saɪnsi·əsnus

Source

90%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14