1. (noun) a hard coarse-grained siliceous sandstone

• gritrock
• gritstone

2. (noun) fortitude and determination

• backbone
• gumption
• guts
• moxie
• sand

1. (noun) a hard coarse-grained siliceous sandstone

• sandstone

2. (noun) fortitude and determination

• fortitude

3. (verb) cover with a grit

• coat
• surface

4. (verb) clench together

• clench

1. (noun) a hard coarse-grained siliceous sandstone

• coarse-grained
• farinaceous
• grainy
• granular
• granulose
• gritty
• mealy

2. (noun) fortitude and determination

• game
• gamey
• gamy
• gritty
• mettlesome
• spirited
• spunky
• gutsy
• plucky

3. (verb) cover with a grit

• gritrock
• gritstone