How do you pronounce "lengthen"?

In American English: /ˈlɛŋθən/ (LEHNGTH-uhn). In British English: /lˈɛŋθən/ (L-ehngth). In Canadian English: /ˈlɛŋθən/ (LEHNGTH-uhn). In Australian English: /lˈɛŋθən/ (L-ehngth).

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

Yes. In American English it's pronounced /ˈlɛŋθən/ (LEHNGTH-uhn), while in British English it's /lˈɛŋθən/ (L-ehngth).

How to Pronounce "lengthen"

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lengthen

disputed

/ˈlɛŋθən/

LEHNGTH-uhn

Syllable Breakdown

lɛŋθlength·ənen

Source

80%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14