The spelling of the word "Sisiliya" can be explained using the International Phonetic Alphabet (IPA). The first syllable '-si-' is pronounced as /sɪ/, while the second syllable '-si-' is pronounced as /sɪ/ as well. The third syllable '-li-' is pronounced as /li/, and the final syllable '-ya' is pronounced as /jə/. Therefore, the correct spelling of this word would be "Sicilia", as it is the spelling of the Italian island it refers to. It is important to use accurate spelling and pronunciation to avoid confusion and misinterpretation.