Simenon vs author

Simenon and author both are nouns.

Word	Noun	Adjective	Verb	Adverb
Simenon	Yes	No	No	No
author	Yes	No	Yes	No

Simenon (noun)	author (noun)
French writer (born in Belgium) best known for his detective novels featuring Inspector Maigret (1903-1989)	writes (books or stories or articles or the like) professionally (for pay)
	someone who originates or causes or initiates something

Simenon (verb)	author (verb)
	be the author of