obviate vs close out

obviate and close out both are verbs.

Word	Noun	Adjective	Verb	Adverb
obviate	No	No	Yes	No
close out	No	No	Yes	No

As verbs, close out is a hyponym of obviate; that is, close out is a word with a more specific, narrower meaning than obviate:

Other hyponyms of obviate include preclude, rule out.

obviate (verb)	close out (verb)
prevent the occurrence of; prevent from happening; to protect from or to keep away anything undesirable; to ward off	to finish off
get rid of something	terminate by selling off or disposing of
	make impossible, especially beforehand