n.
1.an architectural partition with a height and length greater than its thickness
2.an embankment built around a space for defensive purposes
3.anything that suggests a wall in structure or function or effect
4.a masonry fence (as around an estate or garden)
5.(anatomy) a layer (a lining or membrane) that encloses a structure
6.a vertical (or almost vertical) smooth rock face (as of a cave or mountain)
7.a layer of material that encloses space
8.a difficult or awkward situation wall v.
1.surround with a wall in order to fortify