Ambrose Gwinett Bierce vs writer

Ambrose Gwinett Bierce and writer both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ambrose Gwinett Bierce	Yes	No	No	No
writer	Yes	No	No	No

Ambrose Gwinett Bierce (noun)	writer (noun)
United States writer of caustic wit (1842-1914)	writes (books or stories or articles or the like) professionally (for pay)
	a person who is able to write and has written something