Joseph Conrad vs author

Joseph Conrad and author both are nouns.

Word	Noun	Adjective	Verb	Adverb
Joseph Conrad	Yes	No	No	No
author	Yes	No	Yes	No

Joseph Conrad (noun)	author (noun)
English novelist (born in Poland) noted for sea stories and for his narrative technique (1857-1924)	writes (books or stories or articles or the like) professionally (for pay)
	someone who originates or causes or initiates something

Joseph Conrad (verb)	author (verb)
	be the author of