1. an explosive powder used in guns and fireworks, typically made from saltpeter, charcoal, and sulfur

Examples

• The invention of gunpowder changed warfare forever.
• Fireworks contain gunpowder to create the explosive effects.
• The old musket required gunpowder to fire properly.
• Chinese alchemists first developed gunpowder in the 9th century.
• The smell of gunpowder filled the air after the cannon fired.
• Pirates stored barrels of gunpowder in their ship’s hold.