crack-up vs prostration

crack-up and prostration both are nouns.

Word	Noun	Adjective	Verb	Adverb
crack-up	Yes	No	No	No
prostration	Yes	No	No	No

As nouns, prostration is a hypernym of crack-up; that is, prostration is a word with a broader meaning than crack-up:

Other hypernyms of crack-up include collapse.

crack-up (noun)	prostration (noun)
a mental or physical breakdown	the act of assuming a prostrate position
	abject submission; the emotional equivalent of prostrating your body
	an abrupt failure of function or complete physical exhaustion