The spelling of the word "HITI" is straightforward when using the International Phonetic Alphabet (IPA). The first two letters are pronounced as /h/ and /i/, respectively, and the final two letters are pronounced /t/ and /i/, also respectively. Therefore, the word would be pronounced as /hi-ti/. It is important to note that the IPA provides a standardized way of representing the sounds of language and is used by linguists, language learners, and educators to ensure clear communication and accuracy.