UI is the point when interactions between machines and people happen. It lays down the parameters of a user's interaction with a machine.
Address
In blockchain, an address refers to a unique alphanumeric identifier associated with a digital wallet or account that is used to send, receive, and store cryptocurrencies or other digital assets.
Falling Knife
The term falling knife (also known as "Catching a Falling Knife" or "Catching the Bottoms") refers to the action of buying an asset which is rapidly declining in price.
Node
An essential component of a blockchain infrastructure, a node stores data and allows all communication (transactions) to pass through it.