definition of
wall

[1] #1 wall n. an architectural partition with a height and length greater than its thickness; used to divide or enclose an area or to support another structure; "the south wall had a small window"; "the walls were covered with pictures". wn

[2] #2 wall n. anything that suggests a wall in structure or function or effect; "a wall of water"; "a wall of smoke"; "a wall of prejudice"; "negotiations ran into a brick wall". wn

[3] #3 wall n. [paries] (anatomy) a layer (a lining or membrane) that encloses a structure; "stomach walls". wn

[4] #4 wall v. [palisade, fence, fence in, surround] surround with a wall in order to fortify. wn

[5] #5 wall n. a difficult or awkward situation; "his back was to the wall"; "competition was pushing them to the wall". wn