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

• exterminations
• exterminative
• exterminator
• exterminators
• exterminatory
• extermine
• extermined
• extermines
• extermining
• extern
• external
• external-combustion engine
• external-combustion engines
• external degree
• external examination
• external examinations
• external examiner
• external examiners
• externalisation
• externalise
• externalised
• externalises
• externalising
• externalism
• externalisms