(~s)
A ~ is a person who works at a beach or swimming pool and rescues people when they are in danger of drowning.
N-COUNT
(~s)
A ~ is a person who works at a beach or swimming pool and rescues people when they are in danger of drowning.
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012