n. 25B6; noun
brick walls : BARRIER, partition, enclosure, screen, panel, separator.
an ancient city wall : FORTIFICATION, rampart, barricade, bulwark, stockade.
break down the walls that stop world trade : OBSTACLE, barrier, fence; impediment, hindrance, block, check.
mural.
25B6; verb
tenements walled in the courtyard : ENCLOSE, bound, encircle, confine, hem, close in, shut in, fence in.
the doorway had been walled up : BLOCK, seal, close, brick up.
25A0; go to the wall (informal) . See fail sense 1.
25A0; off the wall (informal) . See unconventional .