turf

surface layer of ground containing a mat of grass and grass roots

the territory claimed by a juvenile gang as its own

range of jurisdiction or influence

That upper stratum of earth and vegetable mold which is filled with the roots of grass and other small plants, so as to adhere and form a kind of mat; sward; sod.

cover (the ground) with a surface layer of grass or grass roots

To cover with turf or sod; as, to turf a bank, of the border of a terrace.