doctor vs Christiaan Eijkman

doctor and Christiaan Eijkman both are nouns.

Word	Noun	Adjective	Verb	Adverb
doctor	Yes	No	Yes	No
Christiaan Eijkman	Yes	No	No	No

doctor (noun)	Christiaan Eijkman (noun)
children take the roles of physician or patient or nurse and pretend they are at the physician's office	Dutch physician who discovered that beriberi is caused by a nutritional deficiency (1858-1930)
a licensed medical practitioner
a person who holds Ph.D. degree (or the equivalent) from an academic institution

doctor (verb)	Christiaan Eijkman (verb)
give medical treatment to
alter and make impure, as with the intention to deceive
restore by replacing a part or putting together what is torn or broken