fabrication vs authorship

fabrication and authorship both are nouns.

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

As nouns, authorship is a hypernym of fabrication; that is, authorship is a word with a broader meaning than fabrication:

Other hypernyms of fabrication include composition, penning, writing.

fabrication (noun)	authorship (noun)
the act of making something (a product) from raw materials	the act of creating written works
the act of constructing something (as a piece of machinery)	the act of initiating a new idea or theory or writing
writing in a fictional form
the deliberate act of deviating from the truth
a deliberately false or improbable account