Fysh, spelled with a 'y', is an unusual variant of the word 'fish'. In terms of pronunciation, the 'y' represents a high vowel sound as in 'my' or 'by'. The IPA phonetic transcription for the word 'fysh' would be /fɪʃ/. This spelling may have been used historically or in certain dialects but is not commonly utilized in modern English. It is important to maintain proper spelling and pronunciation to avoid any confusion or misunderstandings.