How do you pronounce "fasten"?

In American English: /ˈfæsən/ (FAS-uhn). In British English: /fˈɑːsən/ (F-ahs). In Canadian English: /ˈfæsən/ (FAS-uhn). In Australian English: /fˈasən/ (F).

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

Yes. In American English it's pronounced /ˈfæsən/ (FAS-uhn), while in British English it's /fˈɑːsən/ (F-ahs).

How to Pronounce "fasten"

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fasten

regional

/ˈfæsən/

FAS-uhn

Syllable Breakdown

fæsfas·ənten

Source

90%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14