The word "Supawn" can be spelled using the IPA (International Phonetic Alphabet) as /suːpɔːn/. The first syllable, "Su," is pronounced with a long "oo" sound, while the second syllable, "pawn," is pronounced with a short "aw" sound. The letter "a" in the second syllable is replaced by the IPA symbol "ɔ" to represent the unique sound. Overall, the spelling of "Supawn" accurately reflects its pronunciation using the IPA.