adjective

closed

Not open or not available for entry or participation.

The library is closed today, so we study at home.

Etymology

Latin claudere meant to shut. Closed describes the resulting condition, extending a physically shut entrance to an organization or activity that does not admit entry or participation.

More examples

Please keep the door closed during the meeting.
The pool is closed to the public this afternoon.
Registration is closed, so no more teams can join.

Forms

closed

closure noun — The act of closing or shutting something.

Similar words

shut: Usually describes a physical opening or a business not operating.
restricted: Limits entry or participation without necessarily ruling it out.