The word "Sephirio" is spelled with a phonetic transcription of /səˈfɪərɪəʊ/. The first syllable, "sep", is pronounced with a short "e" sound followed by a "p" sound. The second syllable, "hir", is pronounced with a short "i" sound and an "r" sound. The final syllable, "io", is pronounced with a short "i" sound and an "o" sound. Together, the phonetic transcription accurately represents the spelling of the word "Sephirio".