refuse vs refusal

refuse and refusal both are nouns.

Word	Noun	Adjective	Verb	Adverb
refuse	Yes	No	Yes	No
refusal	Yes	No	No	No

refuse (noun)	refusal (noun)
food that is discarded (as from a kitchen)	a message refusing to accept something that is offered
	the act of refusing

refuse (verb)	refusal (verb)
show unwillingness towards
not accept as true
refuse to let have
refuse entrance or membership
elude, especially in a baffling way
resist immunologically the introduction of some foreign tissue or organ