Smart Contract
Self-executing code stored on a blockchain that automatically enforces the terms of an agreement when predetermined conditions are met.
Why It Matters
Smart contracts are essential because they automate transactions based on predefined rules, reducing the need for intermediaries. This can cut costs and increase efficiency, making transactions on the blockchain more trustworthy.
Example
For instance, a smart contract for a rental agreement could automatically transfer funds from a tenant to a landlord once conditions like the deposit payment and lease agreement are met, all without manual oversight.
Beginner Context
Newcomers should understand that smart contracts represent a unique aspect of blockchain technology, allowing for automated and secure interactions, which can expand the use cases for cryptocurrencies.
Mike Starr
Founder, CryptoWizardTools · M.S. Organizational Management
Last reviewed: August 2026
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Related Terms
Ethereum
The second-largest cryptocurrency by market capitalization and the leading smart contract platform. It enables developers to build decentralized applications and supports a wide ecosystem of DeFi protocols and NFTs.
DApp
Decentralized Application. An application that runs on a blockchain or peer-to-peer network rather than on centralized servers.
DeFi
Decentralized Finance. Financial services and products built on blockchain technology that operate without traditional intermediaries like banks or brokerages.
Gas Fees
Transaction fees paid to validators or miners for processing transactions on a blockchain network. On Ethereum, gas fees fluctuate based on network congestion.
Oracle
A service that provides external real-world data to smart contracts on the blockchain. Oracles bridge the gap between on-chain and off-chain data.