Pronunciation: [bˌiːtəɹˈɑː] (IPA)
Correct spelling for the English word "BETAARR" is [bˌiːtəɹˈɑː], [bˌiːtəɹˈɑː], [b_ˌiː_t_ə_ɹ_ˈɑː] (IPA phonetic alphabet).
Correct spelling for BETAARR