Arbitrum
A popular Layer 2 scaling solution for Ethereum that uses optimistic rollups to process transactions faster and at a fraction of the cost. Arbitrum is compatible with existing Ethereum smart contracts and developer tools.
Why It Matters
Arbitrum is a layer 2 scaling solution for Ethereum that helps increase transaction speed and reduce costs. Recognizing such platforms is crucial for expanding the Ethereum ecosystem and improving user experiences.
Example
When users transact on Arbitrum, they can enjoy faster confirmations and lower fees compared to the standard Ethereum network. This efficiency allows more people to participate in decentralized applications.
Beginner Context
For those new to cryptocurrency, knowing about Arbitrum shows how blockchain technology is evolving to meet growing demands. It emphasizes the importance of scalability in supporting widespread adoption of decentralized applications.
Mike Starr
Founder, CryptoWizardTools · M.S. Organizational Management
Last reviewed: August 2026
Related Terms
Stablecoin
A cryptocurrency designed to maintain a stable value by pegging it to a reserve asset such as the US Dollar. Examples include USDT, USDC, and DAI.
Buy the Dip
A strategy (and popular crypto phrase) of purchasing an asset after its price has dropped, on the belief that the decline is temporary and the price will recover. Buying the dip works in uptrends but can be costly in sustained bear markets.
DApp
Decentralized Application. An application that runs on a blockchain or peer-to-peer network rather than on centralized servers.
Liquidity Pool
A collection of funds locked in a smart contract that provides liquidity for decentralized exchanges. Users who contribute to pools earn trading fees as rewards.
IEO
Initial Exchange Offering. A fundraising method where a cryptocurrency exchange sells a new token directly to its users on behalf of the project. IEOs are vetted (to varying degrees) by the exchange, which adds a layer of screening over ICOs.