(a mental representation of some haunting experience; "he looked like he had seen a ghost"; "it aroused specters from his past")
(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"; "he detected a ghost of a smile on her face")
(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?")