The wearing away of surface material.
Corrading (erosion by abrasion) caused by such as: wind-blown or water-borne sand, stream-borne or glacier-borne stones, or collisions between stones under the influence of seaside breakers.
The act or sound of something being scratched.
Record scratching, a technique of starting and stopping a vinyl record from playing to produce music in hip hop.
A pork scratching.