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English definition of “gunpowder”

gunpowder

noun [U]     /ˈɡʌnˌpaʊ.dər/ US  /-dɚ/
an explosive mixture of substances in the form of a powder, used for making explosive devices and fireworksExplosives in general
(Definition of gunpowder noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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