Hubbard vs author

Hubbard and author both are nouns.

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

Hubbard (noun)	author (noun)
a mountain peak in southeastern Alaska that is part of the Coast Range (14,950 feet high)	writes (books or stories or articles or the like) professionally (for pay)
a United States writer of science fiction and founder of Scientology (1911-1986)	someone who originates or causes or initiates something

Hubbard (verb)	author (verb)
	be the author of