tile

A thin, flat or convex slab of hard material such as baked clay or plastic, laid in rows to cover walls, floors, and roofs.

A short length of pipe made of clay or concrete, used in sewers and drains.

A hollow fired clay or concrete block used for building walls.

Tiles considered as a group.

A marked playing piece, as in mahjong.

To cover or provide with tiles.

To provide with tile-drains, as land.

To cover or roof with tiles.

In freemasonry, to guard against the entrance of the uninitiated by placing the tiler at the closed door: as, to tile a lodge; to tile a meeting.

To bind to keep what is said or done in strict secrecy.