How do you pronounce "undo"?

In American English: /ənˈduː/ (uhn-DOO). In British English: /ɐndˈuː/ (ⱯND). In Canadian English: /ənˈduː/ (uhn-DOO). In Australian English: /ʌndˈuː/ (uhnd-OO).

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

Yes. In American English it's pronounced /ənˈduː/ (uhn-DOO), while in British English it's /ɐndˈuː/ (ⱯND).

How to Pronounce "undo" | pronounce.how

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undo

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/ənˈduː/

uhn-DOO

Syllable Breakdown

ənun·duːdo

Source

90%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14