Noun

1. anything that rolls
2. any rotating cylindrical device that is part of a machine, especially one used to apply or reduce pressure
3. a heavy rolling device used to flatten the surface of the pitch
4. a large, wide, curling wave that falls back on itself as it breaks on a coast
5. a cylindrical tool for applying paint or ink
6. an agricultural machine used for flattening land and breaking up lumps of earth
7. a tumbling pigeon
8. any of various aggressive birds, of the family Coraciidae, having bright blue wings and hooked beaks
9. (also written Roller) a car made by Rolls-Royce
10. the police (old blues slang)
11. a padded surcingle that is used on horses for training and vaulting