supernova

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supernova /ˌsuːpɚˈnoʊvə/ noun
plural supernovas or supernovae /-ˈnoʊvi/ /ˌsuːpɚˈnoʊvi/
supernova
/ˌsuːpɚˈnoʊvə/
noun
plural supernovas or supernovae /-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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