How do you pronounce "authentication"?

In American English: /ɔˌθɛntəˈkeɪʃən/ (aw-thehnt-uh-KAYSH-uhn). In British English: /ɔːθˌɛntɪkˈeɪʃən/ (awth-ehnt-ik-AYSH-uhn). In Canadian English: /ɔˌθɛntəˈkeɪʃən/ (aw-thehnt-uh-KAYSH-uhn). In Australian English: /ɔːθˌɛntɪkˈeɪʃən/ (awth-ehnt-ik-AYSH-uhn).

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

Yes. In American English it's pronounced /ɔˌθɛntəˈkeɪʃən/ (aw-thehnt-uh-KAYSH-uhn), while in British English it's /ɔːθˌɛntɪkˈeɪʃən/ (awth-ehnt-ik-AYSH-uhn).

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authentication

regional

/ɔˌθɛntəˈkeɪʃən/

aw-thehnt-uh-KAYSH-uhn

Syllable Breakdown

ɔau·θɛntthen·əti·keɪʃca·əntion

Source

90%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-12