n. A surface layer of earth containing a dense growth of grass and its matted roots; sod.n. An artificial substitute for such a grassy layer, as on a playing field.n. A piece cut from a layer of earth or sod.n. A piece of peat that is burned for use as fuel.n. Slang The range of the authority or influence of a person, group, or thing; a bailiwick: "a bureaucracy ... concerned with turf, promotions, the budget, and protecting the retirement system” ( Harper's). n. Slang A geographical area; a territory.n. Slang The area claimed by a gang, as of youths, as its personal territory.n. Sports A racetrack.n. Sports The sport or business of racing horses.v. To spread with turf: turfed the front yard. v. Chiefly British Slang To displace or eject.v. Slang To kill: "These guys can't . . . make sure nobody gets turfed” ( Scott Turow).