invalidation vs invalidate

invalidation is a noun but invalidate is not a noun.

Word	Noun	Adjective	Verb	Adverb
invalidation	Yes	No	No	No
invalidate	No	No	Yes	No

invalidation (noun)	invalidate (noun)
(law) a formal termination (of a relationship or a judicial proceeding etc)
when a person's thoughts and feelings are rejected, ignored, or judged.

invalidation (verb)	invalidate (verb)
	take away the legal force of or render ineffective
	show to be invalid
	make invalid for use
	declare invalid