The spelling of the word "Zabulan" can be explained using IPA phonetic transcription. In this word, the "Z" is pronounced as /z/, the "a" as /æ/, the "b" as /b/, the "u" as /ʊ/, the "l" as /l/, the second "a" as /æ/ and the "n" as /n/. Therefore, the whole word is pronounced as /zæbʊlæn/. This phonetic transcription helps us understand the exact pronunciation of the word and how each letter contributes to the overall sound of the word.