creation vs authorship

creation and authorship both are nouns.

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

As nouns, authorship is a hyponym of creation; that is, authorship is a word with a more specific, narrower meaning than creation:

creation: the act of starting something for the first time; introducing something new
authorship: the act of initiating a new idea or theory or writing

Other hyponyms of creation include paternity.

creation (noun)	authorship (noun)
the human act of creating	the act of creating written works
the act of starting something for the first time; introducing something new	the act of initiating a new idea or theory or writing
an artifact that has been brought into existence by someone
the event that occurred at the beginning of something
everything that exists anywhere