How do you pronounce "treasonous"?

In American English: /ˈtriːzəˌnəs/ (TREEZ-uh-nuhs). In British English: /tɹˈiːzənəs/ (TR-eez-uhn). In Canadian English: /ˈtriːzəˌnəs/ (TREEZ-uh-nuhs). In Australian English: /tɹˈiːzənəs/ (TR-eez-uhn).

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

Yes. In American English it's pronounced /ˈtriːzəˌnəs/ (TREEZ-uh-nuhs), while in British English it's /tɹˈiːzənəs/ (TR-eez-uhn).

How to Pronounce "treasonous"

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treasonous

regional

/ˈtriːzəˌnəs/

TREEZ-uh-nuhs

Syllable Breakdown

triːztrea·əson·nəsous

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14