The correct spelling of "Leadingham" is [lɛdɪŋhæm]. The first syllable "led" is pronounced with a short "e" sound, followed by a soft "i" sound. The second syllable "ing" is pronounced with a nasal "ng" sound, followed by a short "i". The final syllable "ham" is pronounced with a short "a" sound, followed by a light "m". The IPA phonetic transcription helps to clarify the pronunciation of this word and ensures accuracy in spelling.