coin

中文： 硬币、铜钱

1. A piece of currency, usually metallic and in the shape of a disc, but sometimes polygonal, or with a hole in the middle. (countable, uncountable)
2. A token used in a special establishment like a casino. (countable, uncountable)
3. That which serves for payment or recompense. (countable, figuratively, uncountable)
4. Something in broad circulation or use. (figuratively, uncountable)
5. One of the suits of minor arcana in tarot, or a card of that suit. (countable, uncountable)
6. A corner or external angle. (countable, uncountable)
7. A small circular slice of food. (countable, uncountable)

复数 coins