How do you pronounce "complementary"?

In American English: /ˌkɑːmpləˈmɛntri/ (kahmpl-uh-MEHNTR-ee). In British English: /kˌɒmplɪmˈɛntəɹi/ (k-ompl-IM-ehnt-uhr). In Canadian English: /ˌkɑːmpləˈmɛntri/ (kahmpl-uh-MEHNTR-ee). In Australian English: /kˌɒmplɪmˈɛntəɹi/ (k-ompl-IM-ehnt-uhr).

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

Yes. In American English it's pronounced /ˌkɑːmpləˈmɛntri/ (kahmpl-uh-MEHNTR-ee), while in British English it's /kˌɒmplɪmˈɛntəɹi/ (k-ompl-IM-ehnt-uhr).

How to Pronounce "complementary"

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complementary

regional

/ˌkɑːmpləˈmɛntri/

kahmpl-uh-MEHNTR-ee

Syllable Breakdown

kɑːmplcom·əple·mɛntrmen·itary

Source

90%confidence📘 CMU Pronouncing Dictionary v0.7b

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Last updated: 2026-02-14