Decentralized applications (dApps) are blockchain-based applications that run based on smart contract logic and are hosted on decentralized, peer-to-peer networks. DApp usage and intents vary widely, from DeFi lending platforms like Aave to video games like Parallel the TCG.

https://www.coinbase.com/learn/crypto-basics/what-are-decentralized-applications-dapps

https://www.coindesk.com/learn/what-is-a-dapp-decentralized-apps-explained/