break open vs stave

break open is not a noun while stave is a noun.

Word	Noun	Adjective	Verb	Adverb
break open	No	No	Yes	No
stave	Yes	No	Yes	No

As verbs, stave is a hyponym of break open; that is, stave is a word with a more specific, narrower meaning than break open:

Other hyponyms of break open include pop, blow, stave in.

break open (noun)	stave (noun)
	one of several thin slats of wood forming the sides of a barrel or bucket
	a crosspiece between the legs of a chair
	(music) the system of five horizontal lines on which the musical notes are written

break open (verb)	stave (verb)
erupt or intensify suddenly	burst or force (a hole) into something
come open suddenly and violently, as if from internal pressure	furnish with staves
open with force