Tiles are identically shaped objects commonly used in groups to represent spatial related information like areas of a world map, items in an inventory, ability lists, or in tile-based games, moveable gameplay elements.
Example questions appropriate for this tag: organizing tilesets, rendering tile contents, and creating tileable patterns.
For questions specifically about using tiles in world maps, use tilemap.
Easily confused with a grid, a geometric framework tiles may be placed in.
For questions about getting tiles to fit together, consider tile-bitmasking.