closedspace
nounUK /kləʊzd speɪs/
US /kloʊzd speɪs/
A closed space is a place with walls or walls and a roof all around it, so you cannot easily get out or in.
The little room felt like a closed space with no windows.
OTHER MEANINGS
2. A place that is shut off from the outside air or light.
The tunnel was a dark closed space under the hill.
3. A small area that is completely surrounded by something.
The garden was a closed space behind high walls.
4. A feeling of being in a place that is too small or shut in.
He did not like the closed space of the elevator.