ghost
ghost
verb
To move silently and quickly, or to disappear without a trace.
"He ghosted out of the party unnoticed."
noun
The disembodied spirit of a dead person, often believed to appear to the living.
"They say a ghost haunts the old manor house."
Thesaurus
Synonyms: ghostwriter, specter, shade, spook, wraith, spectre, haunt, obsess, ghostwrite, trace, touch