How do you pronounce "costumed"?

In American English: /ˈkɔˌstuːmd/ (KAW-stoomd). In British English: /kˈɒstjuːmd/ (K-osty). In Canadian English: /ˈkɔˌstuːmd/ (KAW-stoomd). In Australian English: /kˈɒstjuːmd/ (K-osty).

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

Yes. In American English it's pronounced /ˈkɔˌstuːmd/ (KAW-stoomd), while in British English it's /kˈɒstjuːmd/ (K-osty).

How to Pronounce "costumed"

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costumed

regional

/ˈkɔˌstuːmd/

KAW-stoomd

Syllable Breakdown

kɔcos·stuːmdtumed

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14