critical point vs crisis

critical point and crisis both are nouns.

Word	Noun	Adjective	Verb	Adverb
critical point	Yes	No	No	No
crisis	Yes	No	No	No

As nouns, crisis is a hypernym of critical point; that is, crisis is a word with a broader meaning than critical point:

critical point: a crisis situation or point in time when a critical decision must be made
crisis: an unstable situation of extreme danger or difficulty

critical point (noun)	crisis (noun)
a crisis situation or point in time when a critical decision must be made	a crucial stage or turning point in the course of something
	an unstable situation of extreme danger or difficulty