Facing is fabric which is stitched inside the edges of a piece of clothing in order to make them look neat and strengthen them.
The facings of a garment such as a jacket or coat are the parts around the neck and wrists when they are made of a different fabric from the main part, or are a different colour.
A facing on a wall is a layer of stone, concrete, or other material that is spread over its surface in order to make it look attractive.
a layer of brick, stone, etc. that covers the surface of a wall to make it look more attractive
a layer of stiff material sewn around the inside of the neck, armholes , etc. of a piece of clothing to make them stronger
the collar , cuffs , etc. of a piece of clothing that are made in a different colour or material