The spelling of the word "Dionis" may seem confusing, but it is actually quite simple once you understand the phonetic transcription. The word is pronounced as /daɪˈɑːnɪs/, which means the letter "D" is pronounced as "dee", followed by the sound of "y" and "oh" in "ocean". The second syllable is pronounced as "nis", with the "n" sound followed by an "ih" sound and then the "s" sound. Overall, the correct spelling reflects the correct pronunciation of the word.