restricted zone

noun
UK /rɪˈstrɪktɪd zəʊn/
US /rɪˈstrɪktɪd zoʊn/

A restricted zone is a place where people are not allowed to go.

The soldiers guarded the restricted zone near the airport.


OTHER MEANINGS

2. An area where special rules limit what people can do.

Cars cannot enter the restricted zone during school hours.

3. A part of a computer system that only certain users may use.

Only the manager can open the restricted zone of the database.

4. An area kept safe for wildlife, where hunting is not allowed.

The forest is a restricted zone for nesting birds.