DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   turf
       n 1: surface layer of ground containing a mat of grass and grass
            roots [syn: turf, sod, sward, greensward]
       2: the territory claimed by a juvenile gang as its own
       3: range of jurisdiction or influence; "a bureaucracy...chiefly
          concerned with turf...and protecting the retirement system"
       v 1: cover (the ground) with a surface layer of grass or grass
            roots