The spelling of the word "SOMEMETI" can be explained using the International Phonetic Alphabet (IPA). The first syllable is pronounced /sʌm/, with the "u" sound as in "but". The second syllable is pronounced /mɛ/ with the "e" sound as in "pet". The third syllable is pronounced /ti/ with the "i" sound as in "hit". Therefore, the correct spelling of this word is "SOME/MET/Y", with the stress on the first syllable "SOME". By using IPA, we can accurately convey the pronunciation of words in written form.