MACH NUMBER
\mˈɑːk nˈʌmbə], \mˈɑːk nˈʌmbə], \m_ˈɑː_k n_ˈʌ_m_b_ə]\
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"