(~s)
In the army and air force, a ~ is an officer who works for a commander or in the headquarters.
N-COUNT
(~s)
In the army and air force, a ~ is an officer who works for a commander or in the headquarters.
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012