Hardhat
Noun · Development
Definitions
A development environment for building, testing, and deploying Ethereum smart contracts, providing a local blockchain network, built-in Solidity compiler, debugging tools, and a plugin ecosystem.
In plain English: A toolkit for building and testing Ethereum blockchain applications on your own computer before putting them on the real network.
Example: "We use Hardhat to run our Solidity tests locally before deploying to the testnet."