The word "Sandix" can be spelled using the International Phonetic Alphabet (IPA) as /ˈsændɪks/. The first syllable "san" is pronounced with a short "a" sound, followed by the "d" sound and the short "i" sound in the second syllable "dix". The "x" at the end of the word is pronounced as a voiced "ks" sound. Overall, the spelling of "Sandix" accurately reflects its pronunciation using the IPA system.