playwright vs Thornton Niven Wilder

playwright and Thornton Niven Wilder both are nouns.

Word	Noun	Adjective	Verb	Adverb
playwright	Yes	No	No	No
Thornton Niven Wilder	Yes	No	No	No

playwright (noun)	Thornton Niven Wilder (noun)
someone who writes plays	United States writer and dramatist (1897-1975)