How To Pronounce First

In British English, first is pronounced /fɜːst/. The narrow phonetic transcription is [fɜːʴst̚]. In American English, it is pronounced /fɜːrst/.

First has one 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.