Pronunciation: (grit), [key]
—n., v., grit•ted, grit•ting.
1. abrasive particles or granules, as of sand or other small, coarse impurities found in the air, food, water, etc.
2. firmness of character; indomitable spirit; pluck: She has a reputation for grit and common sense.
3. a coarse-grained siliceous rock, usually with sharp, angular grains.
5. sand or other fine grainy particles eaten by fowl to aid in digestion.
to cause to grind or grate together.
1. to make a scratchy or slightly grating sound, as of sand being walked on; grate.
2. grit one's teeth, to show tenseness, anger, or determination by or as if by clamping or grinding the teeth together.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.