What is Ethereum compatible?

What exactly do you mean by "Ethereum compatible"? Is it referring to tokens or blockchain projects that can interoperate with Ethereum's network and utilize its infrastructure? Or does it encompass wallets, exchanges, and other services that are compatible with Ethereum and its ERC-20 standard? Additionally, are you asking about projects that are built on top of Ethereum's blockchain, like decentralized applications (dApps) and decentralized finance (DeFi) protocols? Clarifying the context of your question would help me provide a more accurate and comprehensive answer.