ignorance vs ignore

ignorance is a noun but ignore is not a noun.

Word	Noun	Adjective	Verb	Adverb
ignorance	Yes	No	No	No
ignore	No	No	Yes	No

ignorance (noun)	ignore (noun)
the lack of knowledge or education

ignorance (verb)	ignore (verb)
	be ignorant of or in the dark about
	give little or no attention to
	bar from attention or consideration
	refuse to acknowledge
	fail to notice