Coin
A coin is a unit of currency which has the approximate value of the metal it contains. Coins of copper or bronze have less value than those of silver or gold. A coin generally stamped with the face of a nation's ruler, while the reverse has some official insignia.
In fiction
Video games
Coins are the main unit of currency in the Mario franchise. However, the mainline Super Mario games feature them as collectible items instead, and collecting 100 of them gives the player an extra life; this also applies to the Yoshi platforming games.
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