How do you pronounce "catalyst"?

In American English: /ˈkætəˌlɪst/ (KAT-uh-list). In British English: /kˈætəlɪst/ (K-at-uhl). In Canadian English: /ˈkætəˌlɪst/ (KAT-uh-list). In Australian English: /kˈatɐlˌɪst/ (K).

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

Yes. In American English it's pronounced /ˈkætəˌlɪst/ (KAT-uh-list), while in British English it's /kˈætəlɪst/ (K-at-uhl).

How to Pronounce "catalyst"

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catalyst

rare

/ˈkætəˌlɪst/

KAT-uh-list

Syllable Breakdown

kætcat·əa·lɪstlyst

Source

90%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14