noun
a mythical creature resembling a tiny human, often portrayed as mischievous or helpful
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The elf worked diligently in Santa's workshop to prepare for Christmas.
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I heard that elves have pointy ears and live in the forest.
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That dude is like a real-life elf with his green hat and pointy shoes.
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The chef worked like an elf in the kitchen, whipping up dishes with lightning speed.