a particle of soot or other matter that soils or blackens something
a destructive fungal disease, esp of cereals, marked by a transformation of plant organs into dark masses of spores
any of various destructive fungal diseases, esp of cereal grasses, marked by a transformation of plant organs, esp cereal ears, into dark masses of spores
a parasitic fungus causing such a disease: order Ustilaginales
indecent language, writing, pictures, etc