How do you pronounce "treacherous"?

In American English: /ˈtrɛtʃɝəs/ (TREHCH-ur-uhs). In British English: /tɹˈɛtʃəɹəs/ (TR-ehch-uhr). In Canadian English: /ˈtrɛtʃɝəs/ (TREHCH-ur-uhs). In Australian English: /tɹˈɛtʃəɹəs/ (TR-ehch-uhr).

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

Yes. In American English it's pronounced /ˈtrɛtʃɝəs/ (TREHCH-ur-uhs), while in British English it's /tɹˈɛtʃəɹəs/ (TR-ehch-uhr).

How to Pronounce "treacherous"

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treacherous

regional

/ˈtrɛtʃɝəs/

TREHCH-ur-uhs

Syllable Breakdown

trɛtʃtreach·ɝer·əsous

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14