The word "SIGESI" is spelled in a fairly straightforward manner, with each letter corresponding to a specific sound. In IPA phonetic transcription, it would be spelled /sɪˈɡɛsi/, with the "s" representing the "s" sound, the "i" representing the short "i" sound, the "g" representing the "g" sound, the "e" representing the short "e" sound, the "s" representing the "s" sound again, and the final "i" representing the short "i" sound again. Overall, this word is quite easy to spell once you are familiar with the IPA phonetic alphabet.