Lillian Hellman vs playwright

Lillian Hellman and playwright both are nouns.

Word	Noun	Adjective	Verb	Adverb
Lillian Hellman	Yes	No	No	No
playwright	Yes	No	No	No

Lillian Hellman (noun)	playwright (noun)
United States playwright; her plays were often indictments of injustice (1905-1984)	someone who writes plays