wall
noun
\ ˈwȯl
\
\
Definition of wall
(Entry 1 of 3)
1a
: a high thick masonry structure forming a long rampart or an enclosure chiefly for defense
—often used in plural
b
: a masonry fence around a garden, park, or estate
c
: a structure that serves to hold back pressure (as of water or sliding earth)
2
: one of the sides of a room or building connecting floor and ceiling or foundation and roof
3
: the side of a footpath next to buildings
4
: an extreme or desperate position or a state of defeat, failure, or ruin
the surrounded troops had their backs against the wall
5
: a material layer enclosing space
the wall of a container heart walls
6
: something resembling a wall (as in appearance, function, or effect)
especially
: something that acts as a barrier or defense
a wall of reserve tariff wall
off the wall
up the wall
slang
: crazy
the plan was off the wall
slang
: into a state of intense agitation, annoyance, or frustration
the noise drove me up the wall