Wrapped Ethereum (WETH) is a token that represents Ethereum (ETH) on the Ethereum blockchain. The main purpose of WETH is to allow ETH to be used in smart contracts and decentralized applications that require ERC-20 tokens, a widely accepted token standard on the Ethereum network.To create WETH, ETH is locked in a smart contract, and an equivalent amount of WETH is issued. This process ensures that 1 WETH always matches 1 ETH in value. Users can convert their ETH to WETH and back again at any time by interacting with the wrapping contract.WETH enables greater interoperability with various DeFi protocols and trading platforms. It can be used for lending, liquidity provision, and trading on decentralized exchanges, where ERC-20 compatibility is crucial. By using WETH, users gain access to a broader range of financial services and applications while still holding their original ETH value.