energy
definitions
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noun
The ability to do work; vitality; power; a resource like electricity or fuel.en: The ability to do work; vitality; power; a resource like electricity or fuel.
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noun
Vitality or enthusiasm; liveliness.en: Vitality or enthusiasm; liveliness.
examples
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Solar energy powers the house.
Solar energy powers the house.
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She has boundless energy.
She has boundless energy.