The spelling of the word "cascio" may be confusing at first glance. However, when we break it down phonetically using the IPA (International Phonetic Alphabet), it becomes clear. The pronunciation is /ˈkæʃioʊ/. The "c" is pronounced as a "k" sound, the "s" is pronounced as a "sh" sound, and the "io" is pronounced as "ee-oh". Therefore, the spelling of "cascio" accurately reflects its pronunciation.