Definition of powder keg noun from the Oxford Advanced Learner's Dictionary


powder keg

BrE BrE//ˈpaʊdə keɡ//
; NAmE NAmE//ˈpaʊdər keɡ//
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a dangerous situation that may suddenly become very violent We’re sitting on a powder keg of racial tension in the city.
See the Oxford Advanced American Dictionary entry: powder keg