Crypto Glossary
Essential cryptocurrency terms explained in plain English
Altcoin
Any cryptocurrency other than Bitcoin. Examples include Ethereum, Solana, and Cardano.
ATH (All-Time High)
The highest price a cryptocurrency has ever reached.
Bear Market
A prolonged period of declining prices, typically a drop of 20% or more from recent highs.
Blockchain
A decentralized, distributed digital ledger that records transactions across a network of computers. Each block contains transaction data and is linked to the previous block.
Bull Market
A prolonged period of rising prices, characterized by optimism and investor confidence.
Cold Wallet
A cryptocurrency wallet that is not connected to the internet (e.g., hardware wallets like Ledger or Trezor). Considered the most secure way to store crypto.
DApp (Decentralized Application)
An application that runs on a decentralized network (like Ethereum) rather than a single computer or server.
DeFi (Decentralized Finance)
Financial services built on blockchain technology that operate without traditional intermediaries like banks. Includes lending, borrowing, and trading protocols.
DEX (Decentralized Exchange)
A cryptocurrency exchange that operates without a central authority, allowing peer-to-peer trading directly from wallets. Examples: Uniswap, SushiSwap.
DYOR (Do Your Own Research)
A common phrase in crypto encouraging investors to thoroughly research projects before investing.
Fiat Currency
Government-issued currency not backed by a physical commodity (e.g., USD, EUR, GBP).
Gas Fees
Transaction fees paid to validators for processing transactions on a blockchain network. On Ethereum, gas fees fluctuate based on network congestion.
HODL
A misspelling of 'hold' that became crypto slang for holding onto your cryptocurrency long-term regardless of price fluctuations.
Hot Wallet
A cryptocurrency wallet connected to the internet. Convenient for frequent trading but less secure than cold wallets.
KYC (Know Your Customer)
Identity verification process required by most exchanges. Typically involves submitting a government-issued ID.
Liquidity
How easily a cryptocurrency can be bought or sold without significantly affecting its price. Higher liquidity means easier trading.
Market Cap
The total value of a cryptocurrency, calculated by multiplying the current price by the circulating supply. Used to rank and compare cryptocurrencies.
Mining
The process of using computing power to validate transactions and add new blocks to a Proof of Work blockchain. Miners are rewarded with cryptocurrency.
NFT (Non-Fungible Token)
A unique digital asset stored on a blockchain, often representing digital art, collectibles, or other media.
Private Key
A secret cryptographic key that proves ownership of cryptocurrency and allows you to sign transactions. Never share your private key.
Proof of Stake (PoS)
A consensus mechanism where validators are chosen based on how much cryptocurrency they 'stake' (lock up) as collateral. Used by Ethereum, Solana, and Cardano.
Proof of Work (PoW)
A consensus mechanism requiring miners to solve complex mathematical puzzles to validate transactions. Used by Bitcoin.
Satoshi
The smallest unit of Bitcoin (0.00000001 BTC). Named after Bitcoin's creator, Satoshi Nakamoto.
Seed Phrase
A 12-24 word recovery phrase that can restore access to your cryptocurrency wallet. Must be stored securely offline.
Smart Contract
A self-executing program stored on a blockchain that automatically enforces the terms of an agreement when conditions are met.
Stablecoin
A cryptocurrency pegged to a stable asset (usually the US dollar). Examples: USDT, USDC, DAI.
Staking
Locking up cryptocurrency to support a blockchain network's operations (validation) in exchange for rewards.
Token
A digital asset created on an existing blockchain (e.g., ERC-20 tokens on Ethereum). Different from coins, which have their own blockchain.
Volatility
The degree of price fluctuation. Crypto is known for high volatility — prices can swing 10%+ in a single day.
Wallet
Software or hardware that stores your cryptocurrency private keys and allows you to send/receive digital assets.
Whale
An individual or entity that holds a large amount of cryptocurrency, capable of influencing market prices.
Yield Farming
A DeFi strategy where users lend or stake crypto across protocols to earn maximum returns (yield).