The word "SICIUS" is spelled with the IPA phonetic transcription /ˈsɪsiəs/. The first syllable is pronounced as "sih", with a short "i" sound followed by a soft "h". The second and third syllables are pronounced as "shuh", with a soft "s" sound followed by a short "uh" sound. The overall pronunciation of the word is "SI-si-uhs". It is important to use accurate phonetic transcription to properly pronounce words and avoid miscommunication.