Two currencies involved in forex trade.
Two currencies are always involved in a forex trade. One is being bought in exchange for the other. Together, those two currencies are called a currency pair, and are usually represented as two three-letter currency abbreviations. For an example, consider the currency pair EUR/USD. In this example, the first currency is called the base currency and the second US dollar is called the quote currency. To trade with those currencies in forex you need a broker like ECNCAPITAL.COM.