Fence

A fence is a structure that encloses an area, typically outdoors, and is usually constructed from posts that are connected by boards, wire, rails or netting.

Quotes

 * The poacher ... is asserting a right (and an instinct) belonging to a past time—when for hunting purposes all land was held in common. ... In those times private property was theft. Obviously the man who attempted to retain for himself land or goods, or who fenced off a portion of the common ground and—like the modern landlord—would allow no one to till it who did not pay him a tax—was a criminal of the deepest dye. Nevertheless the criminals pushed their way to the front, and have become the respectables of modern society.
 * Edward Carpenter, “Defence of criminals: A criticism of morality”