WALLING

An architectural partition with a height and length greater than its thickness; used to divide or enclose an area or to support another structure

Example: "The south wall had a small window"

Anything that suggests a wall in structure or function or effect

Example: "A wall of water"

(anatomy) a layer (a lining or membrane) that encloses a structure

Example: "Stomach walls"

A difficult or awkward situation

Example: "His back was to the wall"

A vertical (or almost vertical) smooth rock face (as of a cave or mountain)

A layer of material that encloses space

Example: "The walls of the cylinder were perforated"

A masonry fence (as around an estate or garden)

Example: "The wall followed the road"

An embankment built around a space for defensive purposes

Example: "They stormed the ramparts of the city"