"ghost" in the noun sense
1. ghost, shade, spook, wraith, specter, spectre
a mental representation of some haunting experience
"he looked like he had seen a ghost"
"it aroused specters from his past"
2. ghostwriter, ghost
a writer who gives the credit of authorship to someone else
the visible disembodied soul of a dead person
4. touch, trace, ghost
a suggestion of some quality
"there was a touch of sarcasm in his tone"
"he detected a ghost of a smile on her face"
"ghost" in the verb sense
move like a ghost
"The masked men ghosted across the moonlit yard"
2. haunt, obsess, ghost
haunt like a ghost pursue
"Fear of illness haunts her"
3. ghost, ghostwrite
write for someone else
"How many books have you ghostwritten so far?"
Source: WordNet® (An amazing lexical database of English)
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