ignore vs pass up

ignore and pass up both are verbs.

Word	Noun	Adjective	Verb	Adverb
ignore	No	No	Yes	No
pass up	No	No	Yes	No

As verbs, pass up is a hyponym of ignore; that is, pass up is a word with a more specific, narrower meaning than ignore:

ignore (verb)	pass up (verb)
be ignorant of or in the dark about	fail to acknowledge
give little or no attention to	not accept as true
bar from attention or consideration
refuse to acknowledge
fail to notice