Pronunciation: /suːpərˈnoʊvə/
noun a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass
A1 A supernova is a very bright star that explodes and becomes extremely luminous in the process.
A2 Scientists study supernovae to learn more about the life cycle of stars.
B1 The supernova explosion released an immense amount of energy and light.
B2 Astronomers observed a supernova in a distant galaxy through their telescopes.
C1 The remnants of a supernova can form new stars and planets in the universe.
C2 The supernova event was a rare occurrence that fascinated researchers around the world.
formal A supernova is a stellar explosion that briefly outshines an entire galaxy.
informal Did you know that a supernova is the brightest explosion in space?
slang Dude, that supernova was lit!
figurative Her talent was like a supernova, shining brightly and then fading away.
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