amplify vs increase

amplify is not a noun while increase is a noun.

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

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

amplify (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

amplify (verb)	increase (verb)
increase in size, volume or significance	become bigger or greater in amount
increase the volume of	make bigger or more
exaggerate or make bigger
to enlarge beyond bounds or the truth