How do you pronounce "synapses"?

In American English: /ˈsɪæpsɪz/ (SI-aps-iz). In British English: /sˈɪnapsɪz/ (S-in). In Canadian English: /ˈsɪæpsɪz/ (SI-aps-iz). In Australian English: /sˈɪnapsɪz/ (S-in).

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

Yes. In American English it's pronounced /ˈsɪæpsɪz/ (SI-aps-iz), while in British English it's /sˈɪnapsɪz/ (S-in).

How to Pronounce "synapses"

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synapses

regional

/ˈsɪæpsɪz/

SI-aps-iz

Syllable Breakdown

sɪsyn·æpsaps·ɪzes

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14