Grit
Grain stands for:
- Grain size , the size of particles
- the soil type in the soil science sense
- the fineness of abrasives, see abrasives #Classification of the grain size according to the mesh fineness of the sieve
- Graininess, the structure of a photographic layer, see grain (photo)
- a typical conical recess in workpieces, see center punch (tool)
