deepen vs increase

deepen is not a noun while increase is a noun.

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

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

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

deepen (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

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