The correct spelling of the word "middle soap" is /ˈmɪdəl soʊp/. This phonetic transcription reveals the pronunciation of each letter and syllable in the word. "Middle" is spelled with a double "d" to represent the sound of two separate consonants, /d/ and /l/. Meanwhile, "soap" is spelled with the silent "e" at the end, indicating a long "o" sound represented by the phonetic symbol /oʊ/. Accurate spelling is essential for clear communication and understanding of written language.