DApp
Decentralized Application. An application that runs on a blockchain or peer-to-peer network rather than on centralized servers.
Why It Matters
DApps (decentralized applications) operate on blockchains, providing services without centralized control. They are key drivers of innovation in the blockchain space, offering unique functionalities and user experiences.
Example
For instance, a DApp like Uniswap allows users to exchange tokens without intermediaries, relying on smart contracts for all processes. This decentralization leads to increased transparency and reduced costs.
Beginner Context
As a beginner, knowing about DApps is essential as they demonstrate the practical applications of blockchain technology. They represent a shift toward user-controlled services in various industries.
Mike Starr
Founder, CryptoWizardTools · M.S. Organizational Management
Last reviewed: August 2026
Related Terms
Total Supply
The total number of tokens that currently exist, including both circulating tokens and those locked, vested, or reserved. Total supply is different from circulating supply (which only counts freely tradable tokens) and max supply (the cap that will ever exist).
Total Value Locked
The combined value of all cryptocurrency assets deposited into a DeFi protocol at a given time. TVL is a key indicator of a protocol's size, usage, and popularity. A higher TVL generally signals greater trust and adoption.
Fiat Currency
Money issued by a government that is not backed by a physical commodity like gold. Examples include the US Dollar, Euro, and British Pound. In crypto, fiat is often used as the starting point to buy digital assets.
APY
Annual Percentage Yield. The effective annual return on an investment, accounting for the effect of compounding interest.
51% Attack
An attack on a blockchain where a single entity gains control of more than 50% of the network's mining or validation power, allowing them to rewrite transactions, double-spend, or censor blocks. The more decentralized a network, the harder this is to execute.