The spelling of the word "Tirras" is fairly straightforward once you understand its pronunciation. In IPA phonetic transcription, it can be written as /tɪˈrɑːs/. The first syllable is pronounced like "tip" without the "p", and the second syllable rhymes with "boss". The double "r" in the middle is pronounced as a strong rolled "r". Overall, the spelling of "Tirras" accurately reflects its pronunciation, making it easy for English speakers to read and pronounce correctly.