The spelling of "sisemore" is quite straightforward when you consider its pronunciation. In IPA phonetic transcription, it is written as /sɪzəmɔːr/. The first syllable "siz" is spelled with an "s" as opposed to "c" or "z" because the "z" sound is heard here rather than "s" or "k". The second syllable "e" is spelled with an "e" because it is pronounced as a schwa, which is the most common vowel sound in English. The final syllable "more" is spelled with an "o" and "r" as this is how it is pronounced.