How do you pronounce "reactor"?

In American English: /riːˈæktɝ/ (ree-AKT-ur). In British English: /ɹɪˈæktə/ (ri-AKT-uh). In Canadian English: /riːˈæktɝ/ (ree-AKT-ur). In Australian English: /ɹɪˈaktə/ (ri-AKT).

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

Yes. In American English it's pronounced /riːˈæktɝ/ (ree-AKT-ur), while in British English it's /ɹɪˈæktə/ (ri-AKT-uh).

How to Pronounce "reactor"

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reactor

regional

/riːˈæktɝ/

ree-AKT-ur

Syllable Breakdown

riːre·æktac·ɝtor

Source

90%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14