The spelling of the word "CADO" may seem unusual to English speakers, but it follows the rules of Italian phonetics. In IPA transcription, the word is pronounced /ka.do/, where the "c" represents a hard "k" sound as in "cat", and the "a" sounds are both pronounced as in "father". The "d" and "o" sounds are straightforward. Therefore, the spelling of "CADO" accurately represents its pronunciation in Italian.