supernova
noun/ˈsuːpənəʊvə/
/ˈsuːpərnəʊvə/
(plural supernovae
(astronomy)/ˈsuːpənəʊviː/
/ˈsuːpərnəʊviː/
, supernovas)- a star that suddenly becomes much brighter because it is exploding compare nova
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supernova