How do you pronounce "onslaught"?

In American English: /ˈɔnˌslɔt/ (AWN-slawt). In British English: /ˈɒnslɔːt/ (ONSL-awt). In Canadian English: /ˈɔnˌslɔt/ (AWN-slawt). In Australian English: /ˈɒnslɔːt/ (ONSL-awt).

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

Yes. In American English it's pronounced /ˈɔnˌslɔt/ (AWN-slawt), while in British English it's /ˈɒnslɔːt/ (ONSL-awt).

How to Pronounce "onslaught"

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onslaught

regional

/ˈɔnˌslɔt/

AWN-slawt

Syllable Breakdown

ɔnon·slɔtslaught

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14