(~s)
A ~ is a device that is used to make sounds louder or to record them on a tape recorder.
N-COUNT
(~s)
A ~ is a device that is used to make sounds louder or to record them on a tape recorder.
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012