In forex trading, a currency pair is a combination of two different currencies that are traded against each other. Currencies are traded in pairs because when you buy one currency, you're simultaneously selling another.

Each currency pair consists of a base currency and a quote currency. The base currency is the first currency listed in the pair, and the quote currency is the second. The exchange rate tells you how much of the quote currency you need to spend to buy one unit of the base currency.

For example, in the currency pair EUR/USD:

• EUR (Euros) is the base currency.
• USD (U.S. Dollars) is the quote currency.

If the EUR/USD exchange rate is 1.1500, it means that 1 Euro is equal to 1.15 U.S. Dollars.

Traders in the forex market analyze these currency pairs to make predictions about whether the value of one currency will rise or fall against the other. They then make buying or selling decisions based on these predictions, aiming to profit from the fluctuations in exchange rates.

Understanding currency pairs is fundamental in forex trading, as it forms the basis for evaluating and making trading decisions in the foreign exchange market.