How do you pronounce "deceleration"?

In American English: /dɪˌsɛlɝˈeɪʃən/ (di-sehl-ur-AYSH-uhn). In British English: /dɪsˌɛləɹˈeɪʃən/ (dis-ehl-uhr-AYSH-uhn). In Canadian English: /dɪˌsɛlɝˈeɪʃən/ (di-sehl-ur-AYSH-uhn). In Australian English: /dɪsˌɛləɹˈeɪʃən/ (dis-ehl-uhr-AYSH-uhn).

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

Yes. In American English it's pronounced /dɪˌsɛlɝˈeɪʃən/ (di-sehl-ur-AYSH-uhn), while in British English it's /dɪsˌɛləɹˈeɪʃən/ (dis-ehl-uhr-AYSH-uhn).

How to Pronounce "deceleration"

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deceleration

regional

/dɪˌsɛlɝˈeɪʃən/

di-sehl-ur-AYSH-uhn

Syllable Breakdown

dɪde·sɛlcel·ɝer·eɪʃa·əntion

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14