conceal vs concealment

conceal is not a noun while concealment is a noun.

Word	Noun	Adjective	Verb	Adverb
conceal	No	No	Yes	No
concealment	Yes	No	No	No

conceal (noun)	concealment (noun)
	the activity of keeping something secret
	a covering that serves to conceal or shelter something
	the condition of being concealed or hidden

conceal (verb)	concealment (verb)
hold back; keep from being perceived by others
prevent from being seen or discovered