Tile   —n. 1 thin slab of concrete or baked clay etc. Used for roofing or paving etc. 2 similar slab of glazed pottery, cork, linoleum, etc., for covering a wall, floor, etc. 3 thin flat piece used in a game (esp. In mah-jong). —v. (-ling) cover with tiles.  on the tiles colloq. Having a spree.  tiler n. [latin tegula]