exacerbation vs intensification

exacerbation and intensification both are nouns.

Word	Noun	Adjective	Verb	Adverb
exacerbation	Yes	No	No	No
intensification	Yes	No	No	No

As nouns, intensification is a hypernym of exacerbation; that is, intensification is a word with a broader meaning than exacerbation:

exacerbation: action that makes a problem or a disease (or its symptoms) worse
intensification: action that makes something stronger or more extreme

exacerbation (noun)	intensification (noun)
violent and bitter exasperation	action that makes something stronger or more extreme
action that makes a problem or a disease (or its symptoms) worse	the act of increasing the contrast of (a photographic film)