wall

1. wall (noun) — sense 1

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

2. wall (noun) — sense 2

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

Example: The town wall was surrounded by a moat.

3. wall (noun) — sense 3

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

Example: We're adding another wall in this room during the remodeling.  The wind blew against the walls of the tent.

4. wall (verb) — sense 4

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

Example: He walled the study with books.

5. wall (verb) — sense 5

Definition: To use a wallhack.

6. wall (verb) — sense 6

Definition: To wallbang.

Example: I walled her. She's low [health].