Pronunciation: [ˈɒntɐsˌiː] (IPA)
Correct spelling for the English word "ONTASEE" is [ˈɒntɐsˌiː], [ˈɒntɐsˌiː], [ˈɒ_n_t_ɐ_s_ˌiː] (IPA phonetic alphabet).
Correct spelling for ONTASEE