The word "DIATIM" is an unusual word that has a clear spelling based on its phonetic transcription. In IPA, the word is spelled as /daɪətɪm/. This means that the first syllable has the diphthong "ai" and the second syllable has the "i" sound. The final syllable has a short "i" sound followed by the "m" ending. Although the word is not commonly used in everyday language, its spelling can be easily understood thanks to the use of phonetic transcription.