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A sudden, dramatic, and important discovery or development.
breakthrough
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Keep something somewhere for future use.
store
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Extremely large; enormous.
huge
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Find the size, amount, or degree of something.
measure
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Increase or be increased by four times.
quadruple
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A person who has a lot of knowledge skill in a particular area.
expert
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A very, very, very large company.
giant
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A person or company that makes goods for sale.
manufacturer
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Fill something with electrical energy in a battery or battery-operated device.
charge
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Made by people rather than occurring naturally, especially as a copy of something natural.
artificial
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Getting maximum productivity with minimum wasted effort or expense.
efficient
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Make or become better.
improved
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