psychological medicine vs suppress

psychological medicine is a noun but suppress is not a noun.

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

psychological medicine (noun)	suppress (noun)
the branch of medicine dealing with the diagnosis and treatment of mental disorders

psychological medicine (verb)	suppress (verb)
	bring under control by force or authority
	lessen to the point of stopping
	put out of one's consciousness
	consciously restrain from showing; of emotions, desires, impulses, or behavior
	come down on or keep down by unjust use of one's authority