| Rating | Solver | Clue |
|---|---|---|
| OILS | Lubricates | |
| LUBRICATOR | One who, or that which, lubricates. | |
| LUBRICANT | That which lubricates; specifically, a substance, as oil, grease, plumbago, etc., used for reducing the friction of the working parts of machinery. | |
| MUCUS | Any other animal fluid of a viscid quality, as the synovial fluid, which lubricates the cavities of the joints; -- improperly so used. |