(~s)
A ~ is a person who knows a lot about a subject and is often asked to give information or opinions about it to the public.
...a well known political ~.
= expert
N-COUNT: oft supp N
(~s)
A ~ is a person who knows a lot about a subject and is often asked to give information or opinions about it to the public.
...a well known political ~.
= expert
N-COUNT: oft supp N
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012