(1):
(n.) 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.
(2):
(n.) Peat, especially when prepared for fuel. See Peat.
(3):
(n.) Race course; horse racing; - preceded by the.
(4):
(v. t.) To cover with turf or sod; as, to turf a bank, of the border of a terrace.