Pronunciation: [ʃe͡ɪstˈiːn] (IPA)
Correct spelling for the English word "shasteen" is [ʃe͡ɪstˈiːn], [ʃeɪstˈiːn], [ʃ_eɪ_s_t_ˈiː_n] (IPA phonetic alphabet).