How to Pronounce “fast”: British vs American vs Australian
Dialect Analysis & Sound Shift
US says ⁄fæst⁄ (flat "a"); UK and Australia say ⁄fɑːst⁄ (broad "ah").
Linguistic Feature: Vowel ContrastsAmerican English (US)
⁄fæst⁄
Short front vowel ⁄æ⁄
British English (UK)
⁄fɑːst⁄
Broad long vowel ⁄ɑː⁄
Australian English (AUS)
⁄fɑːst⁄
Broad long vowel ⁄ɑː⁄
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105 native video clipsAccent Battle: Which pronunciation do you prefer for "fast"?
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Dialect Analysis & Sound Shift: “fast”
The Trap-Bath split occurred in southern England during the late 18th century, lengthening ⁄æ⁄ to ⁄ɑː⁄ before voiceless fricatives (f, s, th). Australian English inherited this split from British settlers.
Frequently Asked Questions: "Fast" Accent Differences
How do Americans and Britons pronounce "fast" differently?
The Trap-Bath split occurred in southern England during the late 18th century, lengthening ⁄æ⁄ to ⁄ɑː⁄ before voiceless fricatives (f, s, th). Australian English inherited this split from British settlers.
Which English accent is considered the standard for "fast"?
Neither is universally superior. General American (GA) is the predominant broadcast standard in North America, while Received Pronunciation (RP) / BBC English is standard across the UK and widely taught across Europe.
How does Australian pronunciation of "fast" compare to British and American?
Broad long vowel ⁄ɑː⁄
How can I practice switching between US and UK pronunciations for "fast"?
Watch native video clips back-to-back using SayItVid's comparison player. Pay close attention to mouth positioning, vowel length, and whether the final or post-vocalic /r/ sound is pronounced.