writer vs Sherwood Anderson

writer and Sherwood Anderson both are nouns.

Word	Noun	Adjective	Verb	Adverb
writer	Yes	No	No	No
Sherwood Anderson	Yes	No	No	No

writer (noun)	Sherwood Anderson (noun)
writes (books or stories or articles or the like) professionally (for pay)	United States author whose works were frequently autobiographical (1876-1941)
a person who is able to write and has written something