The word "battier" is spelled with the IPA phonetic transcription /ˈbætiər/. This means that the first syllable is pronounced with a short "a" sound, followed by a "t" sound and then the two syllables "iər". This final part is not easy to explain, but can be heard as something like "ee-uh" or "yuh". It is important to get the spelling of words correct so that they can be understood and communicated clearly.