1. The exposed surface of a wall, masonry unit, or sheet of material.
2. The surface of a
unit designed to be exposed, as in finished masonry, or plywood having one side which is
finished.
3. The broad surface of a board, timber, or panel.
4. The exposed vertical surface of an arch.
5. The striking surface of a hammer.
6. During a construction operation in a tunnel, the surface being excavated.
7. To install a surface layer of one material on another, as to face a concrete block wall with brick .