Coin(redirected from paying back in their own coin)
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COIN, commerce, contracts. A piece of gold, silver or other metal stamped by authority of the government, in order to determine its value, commonly called money. Co. Litt. 207; Rutherf. Inst. 123. For the different kinds of coins of the United States, see article Money. As to the value of foreign coins, see article Foreign Coins.