Solidity is an object-oriented, high-level language that resembles JavaScript and is influenced by languages such as C++ and Python. It enables developers to write self-executing contracts with the terms of the agreement directly written into lines of code. Solidity allows for complex types, inheritance, libraries, and robust interoperability with other smart contracts and decentralized applications (dApps). It compiles down to Ethereum bytecode, which is executed on the Ethereum Virtual Machine (EVM). As smart contracts are immutable upon deployment, Solidity's safety features and debugging tools are critical for preventing potential exploits and vulnerabilities.