(history, slang) the Berlin Wall.

(slang) the Trump Wall.

(slang) the Great Wall of China.

A proper noun "wall" represents various locations including villages in cornwall, northumberland, and staffordshire in england, a borough in pennsylvania, and towns in south dakota and texas in the united states.

(astronomy) A Chinese constellation located near Pegasus and Andromeda, one of the 28 lunar mansions and part of the larger Black Turtle.

A rampart of earth, stones etc. built up for defensive purposes.

A structure built for defense surrounding a city, castle etc.

Each of the substantial structures acting either as the exterior of or divisions within a structure.

A point of desperation.

A point of defeat or extinction.

An impediment to free movement.

The butterfly Lasiommata megera.

(often in combination) A barrier.

Something with the apparent solidity, opacity, or dimensions of a building wall.

(anatomy, zoology, botany) A divisive or containing structure in an organ or cavity.

(auction) A fictional bidder used to increase the price at an auction.

(US, slang, medicine) A doctor who tries to admit as few patients as possible.

(soccer) A line of defenders set up between an opposing free-kick taker and the goal.

(roller derby) Two or more blockers skating together so as to impede the opposing team.

(mining) Any of the surfaces of rock enclosing the lode.

(Internet) A personal notice board listing messages of interest to a particular user.

(roleplaying games) A character that has high defenses, thereby reducing the amount of damage taken from the opponent’s attacks.

(slang, seduction community, chiefly definite) The stage of biological aging where physical appearance and attractiveness start to deteriorate rapidly.

(historical) The right or privilege of taking the side of the road near the wall when encountering another pedestrian.

(cycling) A very steep slope.

(nautical) A kind of knot often used at the end of a rope; a wall knot or wale.

To enclose with, or as if with, a wall or walls.

To boil.

To well, as water; spring.

(transitive, nautical) To make a wall knot on the end of (a rope).

(US) Pronunciation spelling of well.