Smart-Contract Blockchain
A blockchain that’s optimised for running smart contracts. Examples are Ethereum, Solana and Avalanche. These differ from blockchains like Bitcoin, which has a very limited ability to run smart contracts.

Soft Fork
A code change in a blockchain protocol that is backwards-compatible. That is to say, soft forks do not mandate all participating nodes update their software.

Solidity
A type of cryptocurrency designed to maintain as stable a price as possible. Despite offering the same utility, the form and function of stablecoins differ tremendously.