doctor vs overhaul

doctor and overhaul both are nouns.

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

doctor (noun)	overhaul (noun)
children take the roles of physician or patient or nurse and pretend they are at the physician's office	periodic maintenance on a car or machine
a licensed medical practitioner	the act of improving by renewing and restoring
a person who holds Ph.D. degree (or the equivalent) from an academic institution

doctor (verb)	overhaul (verb)
give medical treatment to	make repairs, renovations, revisions or adjustments to
alter and make impure, as with the intention to deceive	travel past
restore by replacing a part or putting together what is torn or broken