The spelling of the word "IDSIS" may seem confusing at first, but it is actually quite simple when broken down phonetically. The word is pronounced as /ˈaɪd.sɪs/ with emphasis on the first syllable. The "I" in the first syllable represents a long "i" sound, while the "d" and "s" sounds follow their typical pronunciations. The second syllable is pronounced with a short "i" sound, followed by a "s" sound. Overall, the phonetic transcription helps to clarify the spelling and pronunciation of the word "IDSIS".