G. K. Chesterton vs author

G. K. Chesterton and author both are nouns.

Word	Noun	Adjective	Verb	Adverb
G. K. Chesterton	Yes	No	No	No
author	Yes	No	Yes	No

G. K. Chesterton (noun)	author (noun)
conservative English writer of the Roman Catholic persuasion; in addition to volumes of criticism and polemics he wrote detective novels featuring Father Brown (1874-1936)	writes (books or stories or articles or the like) professionally (for pay)
	someone who originates or causes or initiates something

G. K. Chesterton (verb)	author (verb)
	be the author of