The spelling of the word "OITSS OC" may seem confusing, but it can be broken down phonetically using the International Phonetic Alphabet (IPA). The first part, "OITSS," can be pronounced as /oʊɪts/, with a long "o" sound and a diphthong of "oi" followed by a "ts" sound. The second part, "OC," is straightforward as /oʊsi/, with a long "o" sound followed by an "s" and "i" sound. Altogether, the word is pronounced /oʊɪts oʊsi/.