How To Pronounce Compound

The stress in compound moves depending on how the word is used.

Noun, adjective. It is /ˈkɒm.paʊnd/ in British English and /ˈkɑːm.paʊnd/ in American English with the main stress on the first syllable, as in “a chemical compound”.

Verb. It is /kəmˈpaʊnd/ in British English and /kəmˈpaʊnd/ in American English with the main stress on the second syllable, as in “to compound the problem”.

Slashes / / show the phonemic transcription, the sounds that change meaning. Square brackets [ ] show the phonetic transcription, with the finer detail of how the sounds are actually made.