residency vs resident

residency and resident both are nouns.

Word	Noun	Adjective	Verb	Adverb
residency	Yes	No	No	No
resident	Yes	Yes	No	No

residency (noun)	resident (noun)
the act of dwelling in a place	someone who lives at a particular place for a prolonged period or who was born there
the position of physician who is receiving special training in a hospital (usually after completing an internship)	a physician (especially an intern) who lives in a hospital and cares for hospitalized patients under the supervision of the medical staff of the hospital

residency (adjective)	resident (adjective)
	living in a particular place
	used of animals that do not migrate