How do you pronounce "accumulation"?

In American English: /əˌkjuːmjəˈleɪʃən/ (uh-kyoomy-uh-LAYSH-uhn). In British English: /əkjˌuːmjʊlˈeɪʃən/ (uhky-oomy-uul-AYSH-uhn). In Canadian English: /əˌkjuːmjəˈleɪʃən/ (uh-kyoomy-uh-LAYSH-uhn). In Australian English: /ɐkjˌuːmjʊlˈeɪʃən/ (ɐky-oomy-UUL-aysh).

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

Yes. In American English it's pronounced /əˌkjuːmjəˈleɪʃən/ (uh-kyoomy-uh-LAYSH-uhn), while in British English it's /əkjˌuːmjʊlˈeɪʃən/ (uhky-oomy-uul-AYSH-uhn).

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accumulation

regional

/əˌkjuːmjəˈleɪʃən/

uh-kyoomy-uh-LAYSH-uhn

Syllable Breakdown

əac·kjuːmjcu·əmu·leɪʃla·əntion

Source

90%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-12