How do you pronounce "diagnostic"?

In American English: /ˌdaɪəgˈnɑːstɪk/ (deye-uhg-NAHST-ik). In British English: /dˌaɪəgnˈɒstɪk/ (d-eye-UHGN-ost). In Canadian English: /ˌdaɪəgˈnɑːstɪk/ (deye-uhg-NAHST-ik). In Australian English: /dˌaɪəɡnˈɒstɪk/ (d-eye-UHGN-ost).

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

Yes. In American English it's pronounced /ˌdaɪəgˈnɑːstɪk/ (deye-uhg-NAHST-ik), while in British English it's /dˌaɪəgnˈɒstɪk/ (d-eye-UHGN-ost).

How to Pronounce "diagnostic"

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diagnostic

regional

/ˌdaɪəgˈnɑːstɪk/

deye-uhg-NAHST-ik

Syllable Breakdown

daɪdi·əgag·nɑːstnos·ɪktic

Source

90%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14