| Rating | Solver | Clue |
|---|---|---|
| HONE | Whetstone | |
| RUBBER | A whetstone; a rubstone. | |
| SCYTHESTONE | A stone for sharpening scythes; a whetstone. | |
| RUBSTONE | A stone for scouring or rubbing; a whetstone; a rub. | |
| SNAKESTONE | A kind of hone slate or whetstone obtained in Scotland. | |
| RUB | A stone, commonly flat, used to sharpen cutting tools; a whetstone; -- called also rubstone. | |
| OILSTONE | A variety of hone slate, or whetstone, used for whetting tools when lubricated with oil. | |