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supernova

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supernova/ˌsuːpɚˈnoʊvə/noun
pluralsupernovasorsupernovae/-ˈnoʊvi//ˌsuːpɚˈnoʊvi/
supernova
/ˌsuːpɚˈnoʊvə/
noun
pluralsupernovasorsupernovae/-ˈnoʊvi//ˌsuːpɚˈnoʊvi/
Learner's definition of SUPERNOVA  
[count]astronomy
: the explosion of a star that causes the star to become extremely bright
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