n 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, etc.
n Any of various types of cuboid playing piece used in certain games, such as in dominoes, Scrabble, mahjong, or Rummikub.
v (computing) To arrange in a regular pattern, with adjoining edges (applied to tile-like objects, graphics, windows in a computer interface).