intensify vs increase

intensify is not a noun while increase is a noun.

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

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

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

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

intensify (noun)	increase (noun)
	the act of increasing something
	the amount by which something increases
	a change resulting in an increase
	a process of becoming larger or longer or more numerous or more important
	a quantity that is added

intensify (verb)	increase (verb)
become more intense	become bigger or greater in amount
make more intense, stronger, or more marked	make bigger or more
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