WordWeb Online

1. Grains of rock or sand
    
2. A hard coarse-grained siliceous sandstone
   - gritrock, gritstone
    
3. Fortitude and determination
   "he didn't have the grit to try it";
   - backbone, guts, moxie [N. Amer], sand, gumption, cojones [N. Amer]

1. Cover with a grit
   "grit roads"
    
2. Clench together
   "grit one's teeth"

Derived forms: grits, gritted, gritting

Type of: clench, coat, fortitude, sandstone, surface

Encyclopedia: Grit Grit, Virginia