Grass and the surface layer of earth held together by its roots. The gardener carefully laid the turf over the bare patches in the lawn.
A territory or area of land, especially one considered as someone's personal domain. The gang was very protective of their turf and didn't allow outsiders to enter.
A material used for covering a surface, often used in sports fields, made to resemble grass. The football field was covered with artificial turf to withstand heavy use.
The sport or business of horse racing, especially in Britain. He made a fortune on the turf before retirement.