doctor vs Gilbert

doctor and Gilbert both are nouns.

Word	Noun	Adjective	Verb	Adverb
doctor	Yes	No	Yes	No
Gilbert	Yes	No	No	No

doctor (noun)	Gilbert (noun)
children take the roles of physician or patient or nurse and pretend they are at the physician's office	United States architect who influenced the development of the skyscraper (1859-1934)
a licensed medical practitioner	English navigator who in 1583 established in Newfoundland the first English colony in North America (1539-1583)
a person who holds Ph.D. degree (or the equivalent) from an academic institution	English court physician noted for his studies of terrestrial magnetism (1540-1603)
	a librettist who was a collaborator with Sir Arthur Sullivan in a famous series of comic operettas (1836-1911)

doctor (verb)	Gilbert (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