Tile
From GDWiki
A tile is a graphical object, often in the form of an image, which is displayed multiple times adjacently to other tiles. Tiles are usually placed in tile maps that organize them into a picture of a world. Many tiles can be stored on one image called a tilesheet.
[edit] Forms of tiles
The most common form of tiles are the regular square shaped ones, as seen in the image above.
Another common tile shapes is the isometric one, which can often be found in pixel art. Isometric tiles are rhombuses; squares that have been rotated 45 degrees, which makes them rather uncomfortable to manipulate using the traditional keyboard because the keys aren't organized diagonally.
Hexagonal tiles (sometimes referred to as simply "hex") are another common form of tiles that are used, which utilizes hexagons. However, neither the isometric nor the hexagonal approach is as common as the square one.
