The spelling of "DINISO" can be explained using the International Phonetic Alphabet (IPA) transcription. The first syllable "DI" is pronounced as /diː/, with a long "ee" sound. The second syllable "NI" is pronounced as /nɪ/, with a short "ih" sound. The third syllable "SO" is pronounced as /səʊ/, with a diphthong "ow" sound. Overall, "DINISO" is spelled as it is pronounced phonetically, using the IPA transcription.