break open vs intensify

break open and intensify both are verbs.

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

As verbs, intensify is a hypernym of break open; that is, intensify is a word with a broader meaning than break open:

Other hypernyms of break open include deepen.

break open (verb)	intensify (verb)
erupt or intensify suddenly	become more intense
come open suddenly and violently, as if from internal pressure	make more intense, stronger, or more marked
open with force	increase in extent or intensity
	make the chemically affected part of (a negative) denser or more opaque in order produce a stronger contrast between light and dark