(~s)
1.
Some large buildings have ~s instead of an ordinary door. They consist of four glass doors which turn together in a circle around a vertical post.
As he went through the ~s he felt his courage deserting him.
N-COUNT: usu pl
2.
When you talk about a ~, you mean a situation in which the employees or owners of an organization keep changing.
They have accepted an offer from another firm with a busy ~.
N-COUNT: usu sing disapproval