$SUI "SUI" typically refers to the Sui Network, a blockchain platform developed by Mysten Labs. It uses a unique smart contract programming language called Move, which was originally developed for the Diem (formerly Libra) project by Facebook.

In English:

SUI is a blockchain that uses the Move programming language to enable fast and secure smart contracts. It focuses on scalability and low fees, making it suitable for decentralized applications (dApps), DeFi, and NFTs.

If you meant something else by "SUI language," feel free to clarify!