The spelling of the word "Sydona" can be explained through the use of the International Phonetic Alphabet (IPA). The first syllable "Sy" is pronounced as /saɪ/ with a long "i" sound. The second syllable "do" is pronounced as /doʊ/ with a long "o" sound. The final syllable "na" is pronounced as /nə/ with a neutral vowel sound. Together, the word "Sydona" is pronounced as /saɪˈdoʊnə/. While the origin and meaning of the word "Sydona" may vary, its spelling and pronunciation can be clearly defined using the IPA.