Dictionary definition · ghost
noun
- a mental representation of some haunting experience"he looked like he had seen a ghost"
- a writer who gives the credit of authorship to someone else
- the visible disembodied soul of a dead person
- a suggestion of some quality"there was a touch of sarcasm in his tone"
verb
- move like a ghost"The masked men ghosted across the moonlit yard"
- haunt like a ghost; pursue"Fear of illness haunts her"
- write for someone else"How many books have you ghostwritten so far?"
Source: Open English WordNet (CC BY 4.0).