The spelling of the word "Abasta" is determined by its pronunciation, which is /əˈbæstə/. In IPA phonetic transcription, this is represented by the schwa sound /ə/ followed by the stressed short 'a' sound /æ/ and the consonant cluster 'st' /st/ pronounced together. The final syllable consists of the short 'u' sound /ə/ and the unvoiced 't' sound /t/. Proper spelling is important for effective communication, as it allows readers to better understand the intended message.