psychological medicine vs isolation

psychological medicine and isolation both are nouns.

Word	Noun	Adjective	Verb	Adverb
psychological medicine	Yes	No	No	No
isolation	Yes	No	No	No

psychological medicine (noun)	isolation (noun)
the branch of medicine dealing with the diagnosis and treatment of mental disorders	the act of isolating something; setting something apart from others
	a country's withdrawal from international politics
	a feeling of being disliked and alone
	(psychiatry) a defense mechanism in which memory of an unacceptable act or impulse is separated from the emotion originally associated with it
	a state of separation between persons or groups