Harriet Wilson vs author

Harriet Wilson and author both are nouns.

Word	Noun	Adjective	Verb	Adverb
Harriet Wilson	Yes	No	No	No
author	Yes	No	Yes	No

Harriet Wilson (noun)	author (noun)
author of the first novel by an African American that was published in the United States (1808-1870)	writes (books or stories or articles or the like) professionally (for pay)
	someone who originates or causes or initiates something

Harriet Wilson (verb)	author (verb)
	be the author of