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| light·ning [ ltning ] |
noun |
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flash of light in storm: flashes of light seen in the sky when there is a discharge of atmospheric electricity in the clouds or between clouds and the ground, usually occurring during a thunderstorm
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adjective |
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| Definition: |
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fast: very fast and often very sudden
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| [14th century. <lighten2] |
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like (greased) lightning extremely quickly (informal)
  If he thought there was free food he'd be down there like greased lightning.
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