noun
A full moon that appears larger and brighter than usual as a result of its close proximity to the earth
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The supermoon phenomenon occurs when the moon is at its closest point to Earth in its orbit.
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I heard there's going to be a supermoon tonight, so let's go watch it together!
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Dude, did you see that supermoon last night? It was lit!
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Her beauty was like a supermoon, shining brightly in the darkness of the night.