petard /pe-tär or -tärdˈ/

1. A case containing an explosive, used for blowing in doors, etc (Shakespeare petarˈ)
2. A moving firework

hoist with one's own petard see under hoist

• deciphered
• decipherer
• decipherers
• deciphering
• decipherment
• decipherments
• deciphers
• decision
• decisions
• decision support system
• decision support systems
• decision table
• decision tables
• decision theory
• decisive
• decisively
• decisiveness
• decisivenesses
• decisory
• decistere
• decisteres
• decitizenise
• decitizenised
• decitizenises
• decitizenising