mass hysteria vs craze

mass hysteria and craze both are nouns.

Word	Noun	Adjective	Verb	Adverb
mass hysteria	Yes	No	No	No
craze	Yes	No	Yes	No

As nouns, craze is a hypernym of mass hysteria; that is, craze is a word with a broader meaning than mass hysteria:

mass hysteria: a condition in which a large group of people exhibit the same state of violent mental agitation
craze: state of violent mental agitation

Other hypernyms of mass hysteria include delirium, frenzy, fury, hysteria.

mass hysteria (noun)	craze (noun)
a condition in which a large group of people exhibit the same state of violent mental agitation	a fine crack in a glaze or other surface
	an interest followed with exaggerated zeal
	state of violent mental agitation

mass hysteria (verb)	craze (verb)
	develop a fine network of cracks
	cause to go crazy; cause to lose one's mind