ghost vs ghostwriter

ghost and ghostwriter both are nouns.

Word	Noun	Adjective	Verb	Adverb
ghost	Yes	No	Yes	No
ghostwriter	Yes	No	No	No

As nouns, ghost and ghostwriter are synonyms defined as:

ghost and ghostwriter: a writer who gives the credit of authorship to someone else

ghost (noun)	ghostwriter (noun)
a mental representation of some haunting experience	a writer who gives the credit of authorship to someone else
a suggestion of some quality
the visible disembodied soul of a dead person
a writer who gives the credit of authorship to someone else