Noun

• S: (n) grit, gritrock, gritstone (a hard coarse-grained siliceous sandstone)
• S: (n) backbone, grit, guts, moxie, sand, gumption (fortitude and determination) "he didn't have the guts to try it"
• domain usage
• S: (n) colloquialism (a colloquial expression; characteristic of spoken or written communication that seeks to imitate informal speech)
• direct hypernym / inherited hypernym / sister term
• S: (n) fortitude (strength of mind that enables one to endure adversity with courage)
• derivationally related form

Verb

• S: (v) grit (cover with a grit) "grit roads"
• S: (v) grit (clench together) "grit one's teeth"