Definitions for "tileset"
an appropriately sized bitmap associated with a tile width and a tile height used to split up the bitmap into tiles
Keywords:  grass, rock, kind, wood, material
a kind of material (like grass, wood, rock)
Keywords:  logical, fit, interact, together, ways
a group of individual tiles that interact with each other and fit together in logical ways
Keywords:  theme, follow, collection, common
a collection of tiles which follow a common theme