Mayghan is not a commonly known word and does not have a universally accepted spelling or pronunciation. However, the most widely used spelling of this word seems to be "Meaghan" or "Megan". In IPA transcription, it would be /ˈmeɪɡæn/ or /ˈmɛɡən/. The "May" sound is represented by the "eɪ" diphthong and the "ghan" sound is represented by the "gæn" or "gən" sounds, depending on the spelling used.