The spelling of the word "Andison" can be explained using International Phonetic Alphabet (IPA) transcription. The first syllable "an" is pronounced as [æn], which represents a short "a" sound followed by the "n" consonant. The second syllable "di" is pronounced as [dɪ], representing a short "i" sound and the "d" consonant. Finally, the last syllable "son" is pronounced as [sʌn], representing a short "u" sound and the "n" consonant. Therefore, the correct way to spell "Andison" is [ˈæn.dɪ.sʌn].