How To Pronounce Prolong

In British English, prolong is pronounced /prəˈlɒŋ/. The narrow phonetic transcription is [pr̥əˈlʷɒ̃ŋ]. In American English, it is pronounced /prəˈlɔːŋ/.

Prolong has two syllables, and the main stress falls on the second syllable. The British and American pronunciations are different, so listen to both.

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.