The spelling of the word "un combine" is straightforward when using IPA phonetic transcription. It is pronounced as ʌn kəmˈbaɪn, with the first syllable sounding like "un" and the second syllable pronounced as "kuhm-bine". The IPA symbols used in the transcription help distinguish the correct pronunciation of each sound, ensuring that the word is pronounced accurately. Therefore, by using IPA phonetic transcription, we can easily decipher the spelling and pronunciation of the word "un combine".