disavowal vs denial

disavowal and denial both are nouns.

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

As nouns, denial is a hypernym of disavowal; that is, denial is a word with a broader meaning than disavowal:

disavowal (noun)	denial (noun)
denial of any connection with or knowledge of	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