exaggeration vs increase

exaggeration and increase both are nouns.

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

As nouns, increase is a hypernym of exaggeration; that is, increase is a word with a broader meaning than exaggeration:

Other hypernyms of exaggeration include step-up.

exaggeration (noun)	increase (noun)
the act of making something more noticeable than usual	the act of increasing something
making to seem more important than it really is	the amount by which something increases
extravagant exaggeration	a change resulting in an increase
	a process of becoming larger or longer or more numerous or more important
	a quantity that is added

exaggeration (verb)	increase (verb)
	become bigger or greater in amount
	make bigger or more