If someone has a black eye, they have a dark-coloured bruise around their eye. He punched her in the face at least once giving her a black eye. if you have a black eye, you have a dark area around your eye because you have been hit
[ 'blak ] (adjective.) before 12th century. Middle English blak, from Old English blæc; akin to Old High German blah black, and probably to Latin flagrare to burn, Greek phlegein.