A scratch.

A slight tearing or incision of the skin produced by a sharp instrument. (Sometimes applied slightingly to a trifling flesh-wound.) Cf. scrat, n.2

A deep scratch.

figurative. A scratch or scar. slang.

A superficial wound or abrasion, caused by an object rubbing against the skin of the body.

abrasions caused by a fall on a gravelly or rugged surface.

an abrasion of the skin caused by the friction of a rope.

†(a) a ‘rash’ or outbreak of roads in an area (obsolete); (b) slang skin abrasions caused by falling from a bicycle, skateboard, etc. (cf. gravel-rash…