verb To remove thatch (build-up of organic matter on the soil) from a lawn, to dethatch.
verb To make scratches or cuts on.
A combing tool is used to scarify, cross-scratch, or score the surface of a scratch coat or undercoat of plaster.
verb To damage the testa (seed coat) of a seed by cutting, scraping, chemicals, hot water, or fire to allow permeation of water and faster germination.
verb To break up, loosen, or roughen the surface of a field or road or a hard surface.
verb To scratch, etch, burn, or cut designs into one's skin as a form of body modification.