(~s)
Frequency: The word is one of the 3000 most common words in English.
A ~ is an aircraft with long blades on top that go round very fast. It is able to stay still in the air and to move straight upwards or downwards.
N-COUNT
(~s)
Frequency: The word is one of the 3000 most common words in English.
A ~ is an aircraft with long blades on top that go round very fast. It is able to stay still in the air and to move straight upwards or downwards.
N-COUNT
Collins COBUILD. Толковый словарь английского языка для изучающих язык Коллинз COBUILD (международная база данных языков Бирмингемского университета) . 2012