The spelling of the word "dundon" can be a bit confusing for non-native English speakers. The word is spelled as [dʌndən] in IPA phonetic transcription. It can be divided into two syllables with the first syllable pronounced as "dun" with a "uh" sound and the second syllable pronounced as "dən" with a short "u" sound. The spelling of the word may also vary depending on the accent and dialect used. It is important to note the correct spelling to avoid any misunderstandings or confusion in communication.