noun
a hard, silvery-white metallic element used in alloys and as a coating for other metals
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The price of nickel has been steadily increasing due to high demand in the automotive industry.
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I found a nickel on the ground while I was out for a walk.
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I'm broke, all I have left is a nickel to my name.
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Her words were like a nickel, shiny on the surface but lacking real value.