smokescreen vs concealment

smokescreen and concealment both are nouns.

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

As nouns, concealment is a hypernym of smokescreen; that is, concealment is a word with a broader meaning than smokescreen:

Other hypernyms of smokescreen include concealing, hiding.

smokescreen (noun)	concealment (noun)
an action intended to conceal or confuse or obscure	the activity of keeping something secret
(military) screen consisting of a cloud of smoke that obscures movements	a covering that serves to conceal or shelter something
	the condition of being concealed or hidden