Crypto glossary
Short definitions of the words you will meet most often in crypto.
Altcoin
Any cryptocurrency other than Bitcoin.
Blockchain
A shared record of transactions, grouped into blocks and linked in order, that many computers keep in sync.
Cold wallet
A wallet kept offline, such as a hardware device, so the keys are harder to steal.
Exchange
A platform where you buy, sell or swap cryptoassets.
Gas fee
The fee paid to process a transaction on networks such as Ethereum.
Halving
The scheduled cut in the Bitcoin block reward, roughly every four years.
Hot wallet
A wallet connected to the internet, convenient but more exposed.
Market cap
Price multiplied by the number of coins in circulation.
Private key
The secret that controls a wallet. Anyone with it can move the funds.
Seed phrase
A list of words that can rebuild a wallet. Never share it with anyone.
Stablecoin
A token designed to track the value of a currency such as the US dollar.
Volatility
How sharply a price moves up and down over a period.
Satoshi
The smallest unit of Bitcoin, one hundred millionth of a coin.
Staking
Locking coins to help run a network in return for rewards, with its own risks.