To block or obstruct with a barrier.
A separation between two areas of the body where specialized cells allow the entry of certain substances but prevent the entry of others.
A martial exercise of the 15th and 16th centuries.
The lists in a tournament.
A structure that bars passage.
An obstacle or impediment.
A node (in government and binding theory) said to intervene between other nodes A and B if it is a potential governor for B, c-commands B, and does not c-command A.
A boundary or limit.
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.