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an upright structure, usually made of brick, concrete, or stone that is made to divide, protect, or surround a place
a layer or membrane that encloses or separates structures within an organism, providing protection and support
either of the sides of a room, house, or other building, which connects the floor to the ceiling
a metaphorical barrier representing a difficult or awkward situation that impedes progress or resolution
anything that suggests a wall in structure or function or effect
an embankment built around a space for defensive purposes
a masonry fence (as around an estate or garden)
a layer of material that encloses space
a vertical (or almost vertical) smooth rock face (as of a cave or mountain)
to surround an area with a protective barrier or structure
