Crypto Glossary
Plain-English definitions of the crypto terms you’ll meet across roo2ya — from blockchain and stablecoins to gas, staking and DYOR. Honest and jargon-free. New to crypto? Start with Learn Crypto →
Altcoin Beginner
“Altcoin” means any cryptocurrency other than Bitcoin — literally an “alternative coin.” Read more →
All-Time High (ATH) Beginner
An all-time high is the highest price an asset has ever reached. Read more →
Bear Market Beginner
A bear market is a sustained period of falling prices and pessimism. Read more →
Bitcoin Beginner
Bitcoin is the first and largest cryptocurrency — a decentralised digital money with a fixed maximum supply of 21 million coins. Read more →
Blockchain Beginner
A blockchain is a shared, append-only ledger of transactions maintained across many computers rather than by a single authority. Read more →
Bull Market Beginner
A bull market is a sustained period of rising prices and optimism. Read more →
DAO Advanced
A DAO (decentralised autonomous organisation) is a community-run entity governed by token-holder votes and smart contracts rather than a traditional management structure. Read more →
DeFi Intermediate
DeFi (decentralised finance) is financial services — lending, trading, earning yield — built on public blockchains without traditional intermediaries. Read more →
DYOR Beginner
DYOR stands for “do your own research” — a reminder to verify claims independently before making any decision. Read more →
Ethereum Beginner
Ethereum is the largest smart-contract platform — a programmable blockchain whose native asset is ether (ETH). Read more →
Fear & Greed Index Beginner
The Fear & Greed Index summarises crypto market sentiment on a 0–100 scale, from extreme fear to extreme greed. Read more →
Fiat Currency Beginner
Fiat is government-issued money, such as the US dollar or euro, that is not backed by a physical commodity. Read more →
Gas Intermediate
Gas is the fee paid to process a transaction on Ethereum, measured in a small unit of ether called gwei. Read more →
Halving Intermediate
The Bitcoin halving is a scheduled event, roughly every four years, that cuts the reward miners receive for adding a block in half. Read more →
Liquidity Intermediate
Liquidity is how easily an asset can be bought or sold without moving its price much. Read more →
Market Capitalisation Beginner
Market cap is a coin’s current price multiplied by its circulating supply — a measure of its total size. Read more →
Mining Intermediate
Mining is the process of using computing power to validate transactions and secure a proof-of-work blockchain like Bitcoin. Read more →
NFT Beginner
An NFT (non-fungible token) is a unique blockchain token used to represent ownership of a specific item, such as art or collectibles. Read more →
Private Key Intermediate
A private key is the secret number that controls a crypto wallet and authorises transactions from it. Read more →
Smart Contract Intermediate
A smart contract is code deployed on a blockchain that runs automatically when its conditions are met. Read more →
Stablecoin Beginner
A stablecoin is a cryptocurrency designed to hold a steady value, usually pegged to a currency like the US dollar. Read more →
Staking Intermediate
Staking means locking up a proof-of-stake cryptocurrency to help secure the network, earning rewards in return. Read more →
Volatility Beginner
Volatility describes how sharply and quickly a price moves up and down. Read more →
Wallet Beginner
A crypto wallet is software or hardware that stores the keys used to access and move your cryptocurrency. Read more →