Robinson vs playwright

Robinson and playwright both are nouns.

Word	Noun	Adjective	Verb	Adverb
Robinson	Yes	No	No	No
playwright	Yes	No	No	No

Robinson (noun)	playwright (noun)
United States film actor noted for playing gangster roles (1893-1973)	someone who writes plays
United States poet; author of narrative verse (1869-1935)
United States baseball player; first Black to play in the major leagues (1919-1972)
United States historian who stressed the importance of intellectual and social events for the course of history (1863-1936)
Irish playwright and theater manager in Dublin (1886-1958)
United States prizefighter who won the world middleweight championship five times and the world welterweight championship once (1921-1989)
English chemist noted for his studies of molecular structures in plants (1886-1975)