Definition of turf

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