How do you pronounce "synthesize"?

In American English: /ˈsɪnθəˌsaɪz/ (SINTH-uh-seyez). In British English: /sˈɪnθəsˌaɪz/ (S-inth-uhs). In Canadian English: /ˈsɪnθəˌsaɪz/ (SINTH-uh-seyez). In Australian English: /sˈɪnθəsˌaɪz/ (S-inth-uhs).

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

Yes. In American English it's pronounced /ˈsɪnθəˌsaɪz/ (SINTH-uh-seyez), while in British English it's /sˈɪnθəsˌaɪz/ (S-inth-uhs).

How to Pronounce "synthesize"

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synthesize

disputed

/ˈsɪnθəˌsaɪz/

SINTH-uh-seyez

Syllable Breakdown

sɪnθsyn·əthe·saɪzsize

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14