disregard vs ignore

disregard is a noun but ignore is not a noun.

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

As verbs, disregard and ignore are synonyms defined as:

Other synonyms of disregard include neglect.

As verbs, disregard and ignore are synonyms defined as:

Other synonyms of disregard include brush aside, brush off, discount, dismiss, push aside.

As verbs, disregard and ignore are synonyms defined as:

Other synonyms of disregard include cut, snub.

disregard (noun)	ignore (noun)
willful lack of care and attention
lack of attention and due care

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