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How to pronounce complex

Say it like KOM-pleks. Complex has two syllables, and the main stress falls on the first one (KOM).

VoiceSpeed
US American/ˈkɑmplɛks/KOM-pleks
UK British/ˈkɒmplɛks/KOM-pleks
  • KOM
  • pleks
  • Main stress
  • Lighter stress
  • Unstressed

Complex pronunciation, sound by sound

Read the parts left to right, then blend them together without pausing.

  1. KOMSay this part loudest and longest. The vowel is the "ah" in father.
  2. pleksKeep this part quick and light. The vowel is the "e" in bed.

American vs British pronunciation of complex

  • The short o is rounded in British English (as in "hot"), but open and unrounded in American English.

British respelling: KOM-pleks.

Other ways to say complex

Complex also has this pronunciation, usually with a different meaning or use:

  • kum-PLEKS /kəmˈplɛks/

What does complex mean?

noun
  1. a conceptual whole made up of complicated and related parts“the complex of shopping malls, houses, and roads created a new town”
  2. a compound described in terms of the central atom to which other atoms are bound or coordinated
  3. (psychoanalysis) a combination of emotions and impulses that have been rejected from awareness but still influence a person's behavior
adjective
  1. complicated in structure; consisting of interconnected parts“a complex set of variations based on a simple folk melody”“a complex mass of diverse laws and customs”
  2. difficult to analyze or understand“a complicated problem”“complicated Middle East politics”

Where does complex come from?

From French complexe, from Latin complexus, past participle of complector (“to entwine, encircle, compass, infold”), from com- (“together”) and plectō (“to weave, braid”).

Similar and opposite words

Similar meaning

Opposite meaning

Questions about saying complex

How do you pronounce complex?

Say KOM-pleks. The American pronunciation is /ˈkɑmplɛks/. In British English it is /ˈkɒmplɛks/. Press play above to hear it at normal speed or slowly.

How many syllables are in complex?

Complex has two syllables, and the main stress falls on the first one (KOM). Broken into parts: KOM · pleks.

Is complex pronounced differently in British English?

Yes. The short o is rounded in British English (as in "hot"), but open and unrounded in American English. The British form is /ˈkɒmplɛks/ (KOM-pleks).

Pronunciation from CMUdict and Britfone; meaning from WordNet 3.1.