turn a blind eye vs ignore

turn a blind eye and ignore both are verbs.

Word	Noun	Adjective	Verb	Adverb
turn a blind eye	No	No	Yes	No
ignore	No	No	Yes	No

As verbs, ignore is a hypernym of turn a blind eye; that is, ignore is a word with a broader meaning than turn a blind eye:

Other hypernyms of turn a blind eye include brush aside, brush off, discount, dismiss, disregard, push aside.

turn a blind eye (verb)	ignore (verb)
refuse to acknowledge	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