forgoing vs denial

forgoing and denial both are nouns.

Word	Noun	Adjective	Verb	Adverb
forgoing	Yes	No	No	No
denial	Yes	No	No	No

As nouns, denial is a hyponym of forgoing; that is, denial is a word with a more specific, narrower meaning than forgoing:

forgoing: the act of renouncing; sacrificing or giving up or surrendering (a possession or right or title or privilege etc.)
denial: renunciation of your own interests in favor of the interests of others

Other hyponyms of forgoing include forsaking, giving up, abnegation, self-abnegation, self-denial, self-renunciation.

forgoing (noun)	denial (noun)
the act of renouncing; sacrificing or giving up or surrendering (a possession or right or title or privilege etc.)	a defendant's answer or plea denying the truth of the charges against him
	renunciation of your own interests in favor of the interests of others
	the act of refusing to comply (as with a request)
	the act of asserting that something alleged is not true
	(psychiatry) a defense mechanism that denies painful thoughts