broaden vs increase

broaden is not a noun while increase is a noun.

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

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

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

broaden (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

broaden (verb)	increase (verb)
become broader	become bigger or greater in amount
make broader	make bigger or more
extend in scope or range or area
vary in order to spread risk or to expand