an architectural partition with a height and length greater than its thickness; used to divide or enclose an area or to support another structure | fortification consisting of a low wall |
an embankment built around a space for defensive purposes | a low wall along the edge of a roof or balcony |
a masonry fence (as around an estate or garden) | |
a layer of material that encloses space | |
(anatomy) a layer (a lining or membrane) that encloses a structure | |
anything that suggests a wall in structure or function or effect | |
a vertical (or almost vertical) smooth rock face (as of a cave or mountain) | |
a difficult or awkward situation | |