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

powder keg

noun
 
/ˈpaʊdə keɡ/
 
/ˈpaʊdər keɡ/
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  1. a dangerous situation that may suddenly become very violent
    • We're sitting on a powder keg of tension in the city.
    Topics Dangerc2
See powder keg in the Oxford Advanced American Dictionary
hat-trick
noun
 
 
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