The spelling of the word "TITU" can be explained using the International Phonetic Alphabet (IPA). In IPA, "TITU" is transcribed as /ˈti.tu/. The first syllable is "ti", pronounced with a voiceless "t" sound followed by a short "i" vowel sound. The second syllable is "tu", pronounced with a voiced "t" sound followed by a short "u" vowel sound. The overall pronunciation of "TITU" is /TEE-too/. It is important to use correct spelling and pronunciation to ensure effective communication.