To understand what it means, we need more context. "Tiles" can refer to a few different things:
* Square or rectangular pieces of material used for covering floors, walls, or roofs. These could be made of ceramic, stone, wood, metal, etc.
* Individual squares that make up a game board. These are often found in games like Scrabble, mahjong, or dominoes.
* A specific type of computer graphics display technology.
Could you please provide more information or context about the tiles you're asking about? For example:
* Are you talking about tiles in a game?
* Are you talking about floor tiles?
* Are you talking about tiles in a computer context?
Once I know more, I can give you a more specific answer.