chemist vs Karl Wilhelm Scheele

chemist and Karl Wilhelm Scheele both are nouns.

Word	Noun	Adjective	Verb	Adverb
chemist	Yes	No	No	No
Karl Wilhelm Scheele	Yes	No	No	No

chemist (noun)	Karl Wilhelm Scheele (noun)
a scientist who specializes in chemistry	Swedish chemist (born in Germany) who discovered oxygen before Priestley did (1742-1786)
a health professional trained in the art of preparing and dispensing drugs