no-man's-land

The ground between trenches where a soldier from either side would be easily targeted.

A space amidships used to keep blocks, ropes, etc.; a space on a ship belonging to no one in particular to care for.

Part of a prison, hospital complex, etc. where people are not normally allowed to go.

A place where no one can or should be.

The area between the backcourt and the space close to the net, from which it is difficult to return the ball.

Territory, often disputed, that cannot be inhabited because of fear of conflict, especially:

(medic) The fanciful term for the fibrous sheath of the flexor tendons of the hand, specifically in the zone from the distal palmar crease to the proximal interphalangeal joint.