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quadruple, quartet, quartette, quadruplet | a set of four similar things considered as a unit | |
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quadruple, fourfold, four-fold, quadruplicate, quadruplex | having four units or components | |
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fourfold, quadruple, four-fold | four times as great or many | |
V1, V2 |
quadruple | increase fourfold | |
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quadruple | a quantity that is four times as great as another |