n]
| 1. | a machine for converting thermal energy into mechanical energy or power to produce force and motion. |
| 2. | a railroad locomotive. |
| 3. | a fire engine. |
| 4. | any mechanical contrivance. |
| 5. | a machine or instrument used in warfare, as a battering ram, catapult, or piece of artillery. |
| 6. | Obsolete. an instrument of torture, esp. the rack. |