dApp (Decentralized Application)

A program built on top of a decentralized network using blockchain technology. It combines the power of smart contracts with a user interface to allow people to utilize blockchain technology in new ways. dApps are not controlled by a single authority, and their rules are enforced by the network maintaining the blockchain.

What You Need To Know

The biggest examples given is Finance specifically referring to Decentralized Finance or DEFI applications where users can trade, access lending or borrowing, and cross border payments.