| 1. | Informal. a ghost; specter. |
| 2. | Slang. a ghostwriter. |
| 3. | Slang. an eccentric person. |
| 4. | Slang: Disparaging and Offensive. a black person. |
| 5. | Slang. an espionage agent; spy. |
| 6. | to haunt; inhabit or appear in or to as a ghost or specter. |
| 7. | Informal. to frighten; scare. |
| 8. | Informal. to become frightened or scared: The fish spooked at any disturbance in the pool. |
