repress vs repression

repress is not a noun while repression is a noun.

Word	Noun	Adjective	Verb	Adverb
repress	No	No	Yes	No
repression	Yes	No	No	No

repress (noun)	repression (noun)
	the act of repressing; control by holding down
	(psychiatry) the classical defense mechanism that protects you from impulses or ideas that would cause anxiety by preventing them from becoming conscious
	a state of forcible subjugation

repress (verb)	repression (verb)
block the action of
put out of one's consciousness
suppress in order to conceal or hide
put down by force or intimidation
impede or hinder the natural development or self-expression of