Clarence Shepard Day Jr. vs writer

Clarence Shepard Day Jr. and writer both are nouns.

Word	Noun	Adjective	Verb	Adverb
Clarence Shepard Day Jr.	Yes	No	No	No
writer	Yes	No	No	No

Clarence Shepard Day Jr. (noun)	writer (noun)
United States writer best known for his autobiographical works (1874-1935)	writes (books or stories or articles or the like) professionally (for pay)
	a person who is able to write and has written something