The Wall

A wall is a structure that defines an area, carries a load; provides security, shelter, or soundproofing; or is decorative. There are many kinds of walls, including:

Walls in buildings that form a fundamental part of the superstructure or separate interior rooms, sometimes for fire safety

Border barriers between countries

Brick walls

Defensive walls in fortifications

Doors, mobile walls on hinges which open to form a gateway

Glass walls (only when most of the wall, in smaller amounts it is called a window)

Permanent, solid fences

Precast walls

Retaining walls, which hold back dirt, stone, water, or noise sound

Stone walls

Walls that protect from oceans (seawalls) or rivers (levees)