gunpowder
/ˈɡʌnˌpaʊdər/
noun
- An explosive mixture of substances, typically saltpeter, sulfur, and charcoal, used in firearms and fireworks.
- Fireworks get their bright colors and loud bangs from gunpowder.
- The old cannon was loaded with gunpowder before the reenactment.
- Historians study how gunpowder changed warfare in medieval times.