How do you pronounce "supersonic"?

In American English: /ˌsuːpɝˈsɑːnɪk/ (soop-ur-SAHN-ik). In British English: /sˈuːpəsˈɒnɪk/ (S-oop-UHS-on). In Canadian English: /ˌsuːpɝˈsɑːnɪk/ (soop-ur-SAHN-ik). In Australian English: /sˈuːpəsˈɒnɪk/ (S-oop-UHS-on).

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

Yes. In American English it's pronounced /ˌsuːpɝˈsɑːnɪk/ (soop-ur-SAHN-ik), while in British English it's /sˈuːpəsˈɒnɪk/ (S-oop-UHS-on).

How to Pronounce "supersonic"

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supersonic

regional

/ˌsuːpɝˈsɑːnɪk/

soop-ur-SAHN-ik

Syllable Breakdown

suːpsu·ɝper·sɑːnson·ɪkic

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14