dirt
1.any substance that makes something dirty , for example dust, soil or mud: His clothes were covered in dirt. First remove any grease or dirt from the surface 2.(especially) loose earth or soil: He picked up a handful of dirt and threw it at them - Pack the dirt firmly round the plants. - They live in a shack with a dirt floor. > synonyms at SOIL 3.(informal) unpleasant or harmful information about somebody that could be used to damage their reputation, career, etc; Do you have any dirt on the new guy? 4. (informal) = EXCREMENT: dog dirt IDM > see DISH ., TREAT V.