OUTER BOUNDARY
\ˈa͡ʊtə bˈa͡ʊndəɹi], \ˈaʊtə bˈaʊndəɹi], \ˈaʊ_t_ə b_ˈaʊ_n_d_ə_ɹ_i]\
Word of the day
dust storm
- a windstorm that lifts up clouds of dust or sand a windstorm that lifts up clouds dust or sand; "it was the kind of duster not experienced in years"