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firestorm

noun [C]
 
 
/ˈfaɪə.stɔːm/ US  /ˈfaɪr.stɔːrm/

Definition

a very large fire that is impossible to control, sometimes caused by heavy bombing from aircraftFire and flameFire service
(Definition of firestorm noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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