"Allsun" is a name that may be spelled variously, but the most appropriate phonetic transcription is /ɔːl.sʌn/. The first part of the word is pronounced as "all" with a long "o" sound, while the second part is pronounced as "sun" with a short "u" sound. This spelling is a fusion of two distinct English words, "all" and "sun," both of which suggest an all-around or strong, intense light. As such, "Allsun" might be a fitting name for a bright, luminous person or entity.