Definitions of sable:

• noun:   marten of northern Asian forests having luxuriant dark brown fur
• noun:   a scarf (or trimming) made of sable
• noun:   an artist's brush made of sable hair
• noun:   the expensive dark brown fur of the marten
• noun:   a very dark black
• adjective:   dark somewhat brownish black
• name:  A surname (very rare: popularity rank in the U.S.: #21929)