intensification vs intensify

intensification is a noun but intensify is not a noun.

Word	Noun	Adjective	Verb	Adverb
intensification	Yes	No	No	No
intensify	No	No	Yes	No

intensification (noun)	intensify (noun)
action that makes something stronger or more extreme
the act of increasing the contrast of (a photographic film)

intensification (verb)	intensify (verb)
	become more intense
	make more intense, stronger, or more marked
	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