(noun) (music) brilliance of display (as in the performance of music).
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Noun Definition 1
(noun) the craft of making fireworks. Synonyms: pyrotechny.
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Noun Definition 2
(noun) (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.. Synonyms: firework, pyrotechnic.