The spelling of the word "diza" is based on the phonetic sounds of the word. The IPA phonetic transcription for "diza" is /ˈdi.zə/. The first syllable "di" has the vowel sound /i/, followed by the consonant sound /z/. The second syllable "-za" has the vowel sound /ə/ and ends with the consonant sound /z/. The spelling of the word "diza" accurately reflects the pronunciation of the word and helps to ensure effective communication.