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Definition of Big Bang noun from the Oxford Advanced Learner's Dictionary

Big Bang

noun
 
/ˌbɪɡ ˈbæŋ/
 
/ˌbɪɡ ˈbæŋ/
[singular]
(usually the Big Bang)
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  1. the single large event, followed by a rapid expansion, that most scientists suggest created the universeTopics Spacec1
trait
noun
 
 
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