A ~ is a sudden or major change in the way that something happens or the way that someone behaves.
We now need a ~ in our secondary schools to match that achieved in our primaries.
N-COUNT: usu sing, usu N in n
A ~ is a sudden or major change in the way that something happens or the way that someone behaves.
We now need a ~ in our secondary schools to match that achieved in our primaries.
N-COUNT: usu sing, usu N in n
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012