Real Dictionary

facing
plural noun: 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.
uncountable noun: Facing is fabric which is stitched inside the edges of a piece of clothing in order to make them look neat and strengthen them.
variable noun: 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.

facing in American English
a lining, often decorative, sewn on the inside edge of a garment or on a part that is turned back, as a collar
noun: a covering in front, for ornament, protection, etc., as an outer layer of stone on a brick wall

facing in British English
noun: a piece of material used esp to conceal the seam of a garment and prevent fraying