The term 'currency pair' in cryptocurrencies refers to trading one currency against another. For example, if you see $BTC/$USDT, it means you are trading Bitcoin (BTC) against Tether (USDT). The first currency (BTC) is what you are buying or selling, while the second currency (USDT) shows the price. If the price of BTC/USDT is 30,000, it means that one Bitcoin is equal to 30,000 USDT.

There are many pairs like ETH/BTC and XRP/USDT, among others. These pairs help traders exchange currencies directly without using regular currencies like the dollar. They also help users compare the value of different currencies.

Using trading pairs simplifies and speeds up trading in the cryptocurrency market. If you know how to use them, you can make better decisions and potentially achieve profit. "101 trading currency pairs" likely means a wide range of 101 different pairs available for trading, providing more options for traders.