chemist vs Lars Onsager

chemist and Lars Onsager both are nouns.

Word	Noun	Adjective	Verb	Adverb
chemist	Yes	No	No	No
Lars Onsager	Yes	No	No	No

chemist (noun)	Lars Onsager (noun)
a scientist who specializes in chemistry	United States chemist (born in Norway) noted for his work in thermodynamics (1903-1976)
a health professional trained in the art of preparing and dispensing drugs