How do you pronounce "synonymous"?

In American English: /səˈnɑːnəməs/ (suh-NAHN-uhm-uhs). In British English: /sɪnˈɒnɪməs/ (sin-ON-im-uhs). In Canadian English: /səˈnɑːnəməs/ (suh-NAHN-uhm-uhs). In Australian English: /sɪnˈɒnɪməs/ (sin-ON-im-uhs).

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

Yes. In American English it's pronounced /səˈnɑːnəməs/ (suh-NAHN-uhm-uhs), while in British English it's /sɪnˈɒnɪməs/ (sin-ON-im-uhs).

How to Pronounce "synonymous"

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synonymous

regional

/səˈnɑːnəməs/

suh-NAHN-uhm-uhs

Syllable Breakdown

səsyn·nɑːnony·əmmo·əsus

Source

90%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14