How do you pronounce "interplanetary"?

In American English: /ˌɪntɝˈplænəˌtɛri/ (int-ur-PLAN-uh-tehr-ee). In British English: /ˌɪntəplˈanɪtəɹi/ (int-uhpl-AN-it-uhr). In Canadian English: /ˌɪntɝˈplænəˌtɛri/ (int-ur-PLAN-uh-tehr-ee). In Australian English: /ˌɪntəplˈanɪtəɹi/ (int-uhpl-AN-it-uhr).

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

Yes. In American English it's pronounced /ˌɪntɝˈplænəˌtɛri/ (int-ur-PLAN-uh-tehr-ee), while in British English it's /ˌɪntəplˈanɪtəɹi/ (int-uhpl-AN-it-uhr).

How to Pronounce "interplanetary"

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interplanetary

regional

/ˌɪntɝˈplænəˌtɛri/

int-ur-PLAN-uh-tehr-ee

Syllable Breakdown

ɪntin·ɝter·plænpl·əan·tɛre·itary

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14