grit grit /ˈgrɪt/

noun

1. Fortitude and determination  ( grit , gumption [Informal] , moxie [Informal, N. American] , backbone , guts , sand [Informal, N. American] )
   fortitude and determination
    He didn't have the guts to try it
   he didn't have the guts to try it
   
2. A hard coarse-grained siliceous sandstone  ( grit , gritrock , gritstone )
   a hard coarse-grained siliceous sandstone
   

verb

1. Clench together  ( grit )
   clench together
    Grit one's teeth
   grit one's teeth
   
2. Cover with a grit  ( grit )
   cover with a grit
    Grit roads
   grit roads