Trading pairs are fundamental to crypto transactions. A trading pair shows which two currencies you can trade against each other, like BTC/USDT or BNB/ETH. The first currency is what you’re buying or selling, and the second is the quote currency used to measure its value. For example, if BTC/USDT is at 70,000, that means one Bitcoin is worth 70,000 Tether (USDT). Understanding trading pairs helps you navigate price trends, liquidity, and strategy. Be aware of your base currency—mistaking it could lead to unexpected trades. Whether you're in spot or futures, always check the pair before clicking buy or sell.