Pronunciation: [bˌiːtˌiːˈe͡ɪt͡ʃtˌiːˌɛksˈa͡ɪ] (IPA)
Correct spelling for the English word "BTHTXI" is [bˌiːtˌiːˈe͡ɪt͡ʃtˌiːˌɛksˈa͡ɪ], [bˌiːtˌiːˈeɪtʃtˌiːˌɛksˈaɪ], [b_ˌiː_t_ˌiː__ˈeɪ_tʃ_t_ˌiː__ˌɛ_k_s_ˈaɪ] (IPA phonetic alphabet).
Correct spelling for BTHTXI