The scratching, etching, burning / branding, or superficially cutting designs, pictures, or words into the skin as a permanent body modification.
A medieval form of penance in which the skin was damaged with a knife or hot iron.
The act of scarifying: raking the ground harshly to remove weeds, etc.
A route of administration for some vaccinations and tests: rather than hypodermic injection, the site is inoculated intradermally not with any injection but rather only with small, shallow pricks or scratches; the needle is not hollow.
Any burn on the skin caused by scraping the skin against a surface.
A black mark left on a road surface from the sliding or skidding tires of a motor vehicle that has lost traction.
A visible feces stain left on underpants, trousers, or sometimes the toilet bowl.
Any other mark or stain left on a surface from a sliding or rubbing object.
A mark of a soiled finger wiped on a surface.