sparkler vs firework

sparkler and firework both are nouns.

Word	Noun	Adjective	Verb	Adverb
sparkler	Yes	No	No	No
firework	Yes	No	No	No

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

sparkler: a firework that burns slowly and throws out a shower of sparks
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 sparkler include pyrotechnic.

sparkler (noun)	firework (noun)
a firework that burns slowly and throws out a shower of sparks	(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.
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