How To Pronounce Increase

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

Noun. It is /ˈɪŋ.kriːs/ in British English and /ˈɪŋ.kriːs/ in American English with the main stress on the first syllable, as in “an increase”.

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

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.