UI is the point when interactions between machines and people happen. It lays down the parameters of a user's interaction with a machine.
DeFi
a movement promoting substitutes for conventional, centralized financial services.
Governance Token
Developers design governance tokens to let token holders influence the direction of a protocol.
Coin
Cryptocurrencies known as coins run on separate blockchains and are unrelated to other coins. Such a cryptocurrency's single unit is also known as a coin.