"grit" in the noun sense
1. grit, gritrock, gritstone
a hard coarse-grained siliceous sandstone
2. backbone, grit, guts, moxie, sand, gumption
fortitude and determination
"he didn't have the guts to try it"
"grit" in the verb sense
1. grit
cover with a grit
"grit roads"
2. grit
clench together
"grit one's teeth"
Source: WordNet® (An amazing lexical database of English)
Princeton University "About WordNet®."
WordNet®. Princeton University. 2010.
View WordNet® License