bus ‧ ing /ˈbʌsɪŋ/ BrE AmE noun [uncountable]
a system in the US in which students ride buses to schools that are far from where they live, so that a school has students of different races
bus ‧ ing /ˈbʌsɪŋ/ BrE AmE noun [uncountable]
a system in the US in which students ride buses to schools that are far from where they live, so that a school has students of different races
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012