The spelling of "amoruso" can be explained using the International Phonetic Alphabet (IPA). The first syllable "a" is pronounced as /ə/, the second syllable "mo" is pronounced as /mo/ and the final syllable "ruso" is pronounced as /ɹuːsoʊ/. Therefore, the correct spelling of the word is "amoruso" and not "amoroso" as commonly mistaken. It is important to pay attention to the pronunciation of words as it affects spelling and the meaning of the word.