Classroom
DeFi
Decentralized finance: lending, swaps and yield via smart contracts, with no bank in the middle. It all runs on-chain and is publicly verifiable.
Category: BlockchainRelated terms
Staking
Locking coins to help secure a network in exchange for a reward. It resembles interest but carries network and price risk.
CEX vs DEX
A CEX is a centralized exchange (Binance, Coinbase) with custody and KYC. A DEX is a decentralized exchange where you trade straight from your own wallet.
Gas fee
A fee paid to the network to execute a transaction or contract. It fluctuates with network congestion.