catherine wheel vs firework

catherine wheel and firework both are nouns.

Word	Noun	Adjective	Verb	Adverb
catherine wheel	Yes	No	No	No
firework	Yes	No	No	No

As nouns, firework is a hypernym of catherine wheel; that is, firework is a word with a broader meaning than catherine wheel:

catherine wheel: a circular firework that spins round and round emitting colored fire
firework: (usually plural) a device with an explosive that burns at a low rate and with colored flames; can be used to illuminate areas or send signals etc.

Other hypernyms of catherine wheel include pyrotechnic.

catherine wheel (noun)	firework (noun)
a circular firework that spins round and round emitting colored fire	(usually plural) a device with an explosive that burns at a low rate and with colored flames; can be used to illuminate areas or send signals etc.