This is the 404th most frequent Chinese word.
美元
U.S. dollar.
The term '美元' is used as a measure of currency, representing the US dollar value.
我今天换了100美元.
I exchanged 100 US dollars today.
In this example, '美元' is used in a financial exchange context, specifying the currency involved in the exchange rate.
美元兑欧元的汇率最近有所下降.
The exchange rate of the US dollar against the euro has recently decreased.
Here, '美元' describes the currency denomination of the physical bills present in the wallet.