To remain concealed in order to ambush.
To hang out or wait around a location, preferably without drawing attention to oneself.
To read an Internet forum without posting comments or making one's presence apparent.
To saddle (a person) with an undesirable task or duty.
To remain unobserved.
The act of lurking.
To protect from the intrusion of the uninitiated.
To seal a lodge against intrusions from unauthorised people.
To arrange in a regular pattern, with adjoining edges (applied to tile-like objects, graphics, windows in a computer interface).
To optimize (a loop in program code) by means of the tiling technique.
To cover with tiles.
Any of various flat cuboid playing pieces used in certain games, such as dominoes, Scrabble, or mahjong.
A regularly-shaped slab of clay or other material, affixed to cover or decorate a surface, as in a roof-tile, glazed tile, stove tile, carpet tile, etc.
A rectangular graphic.