The spelling of the word "Korissa" is quite straightforward, as it follows the basic English phonetic rules. The word is pronounced as "kəˈrɪsə", with the stressed syllable being the second one. In IPA phonetic transcription, it is spelled as /kəˈrɪsə/. The first syllable is pronounced with an unstressed "schwa" sound, and the "r" sound in the second syllable is slightly softened. Overall, the spelling of "Korissa" accurately represents its pronunciation.