gunpowder

Từ điển Oxford Advanced Learner 8th

gun·pow·der [gunpowder gunpowders] BrE [ˈɡʌnpaʊdə(r)] NAmE [ˈɡʌnpaʊdər] (also pow·der) noun uncountable
↑explosive powder used especially in bombs or ↑fireworks
See also: ↑powder