$ETH An ETH pair in cryptocurrency refers to a trading pair where Ethereum (ETH) is the base or quote currency. This means ETH is either being traded against another cryptocurrency (e.g., ETH/BTC, ETH/USDT) or used as collateral in decentralized finance (DeFi) platforms. ETH pairs are popular because Ethereum is one of the most widely used and liquid cryptocurrencies, making it a standard for trading and transactions. Traders use ETH pairs to speculate on price movements, transfer value, or provide liquidity. Ethereum’s widespread use in smart contracts and DeFi applications further enhances the importance of ETH trading pairs in the crypto market.