Pronunciation: [wɒst ˌɒn tɹˈe͡ɪl] (IPA)
Correct spelling for the English word "wast on trail" is [wɒst ˌɒn tɹˈe͡ɪl], [wɒst ˌɒn tɹˈeɪl], [w_ɒ_s_t ˌɒ_n t_ɹ_ˈeɪ_l] (IPA phonetic alphabet).
Correct spelling for wast on trail