the ambiguous region between two categories or states or conditions (usually containing some features of both); "but there is still a twilight zone, the tantalizing occurrences that are probably noise noise but might possibly be a signal"; "in the twiligh
an unoccupied area between the front lines of opposing armies
land that is unowned and uninhabited (and usually undesirable)
the ambiguous region between two categories or states or conditions (usually containing some features of both)