ghost vs authorship

ghost and authorship both are nouns.

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

ghost (noun)	authorship (noun)
a mental representation of some haunting experience	the act of creating written works
a suggestion of some quality	the act of initiating a new idea or theory or writing
the visible disembodied soul of a dead person
a writer who gives the credit of authorship to someone else