crescendo vs increase

crescendo and increase both are nouns.

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

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

crescendo (noun)	increase (noun)
(music) a gradual increase in loudness	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

crescendo (adjective)	increase (adjective)
(music) gradually increasing in volume

crescendo (verb)	increase (verb)
grow louder	become bigger or greater in amount
	make bigger or more