American English

Definition of aftermath noun from the Oxford Advanced American Dictionary

 

aftermath

 noun
noun
NAmE//ˈæftərˌmæθ//
 
[usually singular]
 
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the situation that exists as a result of an important (and usually unpleasant) event, especially a war, an accident, etc. A lot of rebuilding took place in the aftermath of the war. the assassination of the president and its immediate aftermath
See the Oxford Advanced Learner's Dictionary entry: aftermath