How To Pronounce Breakthrough

In British English, breakthrough is pronounced /ˈbreɪk.θruː/. The narrow phonetic transcription is [ˈbreɪk.θrʷuː]. In American English, it is pronounced /ˈbreɪk.θruː/.

Breakthrough has two syllables, and the main stress falls on the first syllable. British and American speakers say it the same way.

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.