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thunderbolt

noun [S] (SURPRISE/SHOCK)
 
 
/ˈθʌn.də.bəʊlt/ US  /-dɚ.boʊlt/

Definition

an announcement, event, or idea that is completely unexpected or shocking: He dropped a thunderbolt on us this morning, when he told us that we were closing down.Surprising and shockingMaking people sad, shocked and upset
(Definition of thunderbolt noun (SURPRISE/SHOCK) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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