How do you pronounce "addendum"?

In American English: /əˈdɛndəm/ (uh-DEHND-uhm). In British English: /ədˈɛndəm/ (uhd-EHND-uhm). In Canadian English: /əˈdɛndəm/ (uh-DEHND-uhm). In Australian English: /ɐdˈɛndəm/ (ⱯD-ehnd).

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

Yes. In American English it's pronounced /əˈdɛndəm/ (uh-DEHND-uhm), while in British English it's /ədˈɛndəm/ (uhd-EHND-uhm).

🗣️pronounce.how

addendum

/əˈdɛndəm/

uh-DEHND-uhm

Syllable Breakdown

əad·dɛndden·əmdum

Source

90%confidence📘 CMU Pronouncing Dictionary v0.7b

All Variants

Edit on GitHub 🐛 Report an issue

Last updated: 2026-02-12