Crypto Glossary - 60+ Cryptocurrency Terms Explained

A

Airdrop

Free distribution of cryptocurrency tokens to wallet addresses, often used to reward early users or promote a new project. Learn more about airdrops.

Altcoin

Any cryptocurrency other than Bitcoin. Includes Ethereum, Solana, Cardano, and thousands of others. Short for "alternative coin."

AMM

Automated Market Maker — a type of decentralized exchange that uses liquidity pools and mathematical formulas instead of traditional order books to facilitate trades.

APY

Annual Percentage Yield — the rate of return on crypto staking or lending, including compound interest. A 5% APY means $100 becomes $105 after one year.

Arbitrage

Buying crypto on one exchange where the price is lower and selling on another where it's higher to profit from the difference. Our price comparison tool helps find these gaps.

ATH

All-Time High — the highest price a cryptocurrency has ever reached. Often referenced during bull markets.

ATL

All-Time Low — the lowest price a cryptocurrency has ever reached.

B

Bear Market

A prolonged period of declining prices, typically defined as a 20%+ drop from recent highs. Characterized by pessimism and fear. Bear market survival guide.

Block

A group of transactions bundled together and added to the blockchain. Each block is cryptographically linked to the previous one, forming a chain.

Blockchain

A distributed, immutable digital ledger that records transactions across a network of computers. The technology underlying cryptocurrencies. Full explanation.

Bridge

A protocol that allows transferring tokens between different blockchains (e.g., from Ethereum to Solana). Bridges can carry security risks.

Bull Market

A prolonged period of rising prices, characterized by optimism and buying activity. The opposite of a bear market.

Burn

Permanently removing tokens from circulation by sending them to an inaccessible address. Burning reduces supply, which can increase scarcity and value.

C

CEX

Centralized Exchange — a crypto trading platform operated by a company (e.g., Coinbase, Binance). Compare them on our exchanges page. CEX vs DEX comparison.

Cold Wallet

A cryptocurrency wallet that is not connected to the internet, such as a hardware device (Ledger, Trezor) or paper wallet. Most secure storage method. Hardware wallet guide.

D

DAO

Decentralized Autonomous Organization — an internet-native organization governed by token holders through voting, with rules encoded in smart contracts. Learn about DAOs.

DApp

Decentralized Application — an application that runs on a blockchain network rather than centralized servers.

DCA

Dollar-Cost Averaging — investing a fixed amount at regular intervals regardless of price. Reduces the impact of volatility. DCA guide.

DeFi

Decentralized Finance — financial services (lending, borrowing, trading) built on blockchain without traditional intermediaries like banks. Full DeFi explanation.

DEX

Decentralized Exchange — a peer-to-peer trading platform that operates through smart contracts without a central authority (e.g., Uniswap, Jupiter).

Diamond Hands

Slang for holding a cryptocurrency through extreme price drops without selling. The opposite of paper hands.

DYOR

Do Your Own Research — a reminder to independently verify information before investing, rather than blindly following advice. DYOR guide.

E

ERC-20

The most common token standard on Ethereum. Most tokens you trade on Ethereum (LINK, UNI, AAVE) follow the ERC-20 specification.

F

Fear & Greed Index

A metric that measures market sentiment on a scale of 0 (Extreme Fear) to 100 (Extreme Greed). Check the current value on our homepage.

Fiat

Government-issued currency like USD, EUR, or GBP. "Fiat on-ramp" means a way to buy crypto with traditional money.

FOMO

Fear Of Missing Out — the anxiety that drives people to buy crypto at high prices because they see others profiting.

Fork

A change to a blockchain's protocol. A hard fork creates a new chain (e.g., Bitcoin Cash from Bitcoin). A soft fork is backward-compatible.

FUD

Fear, Uncertainty, and Doubt — negative information or propaganda spread to cause panic selling.

G

Gas

The fee paid to process transactions on a blockchain, especially Ethereum. Gas prices fluctuate based on network congestion.

Genesis Block

The very first block in a blockchain. Bitcoin's genesis block was mined by Satoshi Nakamoto on January 3, 2009.

H

Halving

An event that cuts Bitcoin mining rewards in half roughly every 4 years, reducing the rate of new BTC creation. Halving explained.

Hash Rate

The total computational power being used to mine and secure a blockchain network. Higher hash rate = more secure network.

HODL

Hold On for Dear Life — a misspelling of "hold" that became crypto slang for long-term holding through volatility. Originally from a 2013 Bitcoin forum post.

Hot Wallet

A cryptocurrency wallet connected to the internet (e.g., MetaMask, exchange wallets). Convenient but less secure than cold wallets.

I

ICO

Initial Coin Offering — a fundraising method where new projects sell tokens to early investors. Popular in 2017, now largely replaced by IDOs and launchpads.

Impermanent Loss

The potential loss experienced when providing liquidity to an AMM, compared to simply holding the tokens. Occurs when token prices diverge.

K

KYC

Know Your Customer — identity verification required by regulated exchanges. Typically involves providing ID documents and proof of address.

L

Layer 1

The base blockchain (e.g., Bitcoin, Ethereum, Solana). Processes transactions directly on the main chain.

Layer 2

A scaling solution built on top of a Layer 1 blockchain to increase speed and reduce fees (e.g., Arbitrum, Optimism, Polygon). L2 explained.

Liquidity

How easily a crypto asset can be bought or sold without significantly affecting its price. High liquidity = tight spreads and easy trading.

Liquidity Pool

A smart contract containing locked tokens that provides liquidity for decentralized trading. Users deposit tokens and earn trading fees.

M

Market Cap

Total value of a cryptocurrency = current price × circulating supply. Used to rank and compare cryptocurrencies. View market caps on our price tracker.

Memecoin

A cryptocurrency created as a joke or meme with no inherent utility (e.g., Dogecoin, Shiba Inu). Highly speculative. Memecoin guide.

Mining

Using computational power to validate transactions and secure a proof-of-work blockchain. Miners are rewarded with new coins. See our mining stats.

Mint

Creating new tokens or NFTs on a blockchain. "Minting an NFT" means publishing it to the blockchain for the first time.

N

NFT

Non-Fungible Token — a unique digital token representing ownership of a specific item (art, collectible, music, etc.) on a blockchain.

Node

A computer that maintains a copy of the blockchain and helps validate transactions. More nodes = more decentralized network.

O

Oracle

A service that provides real-world data to smart contracts (e.g., price feeds, weather data). Chainlink is the leading oracle network.

P

Paper Hands

Slang for someone who sells at the first sign of a price drop. The opposite of diamond hands.

Private Key

A secret cryptographic key that proves ownership of your crypto. Never share it. Losing your private key means losing your funds permanently.

Proof of Stake (PoS)

A consensus mechanism where validators lock up (stake) tokens to secure the network, rather than mining. Used by Ethereum, Solana, Cardano.

Proof of Work (PoW)

A consensus mechanism where miners solve complex mathematical puzzles to validate transactions. Used by Bitcoin and Litecoin.

R

Rug Pull

A scam where developers abandon a project and steal investor funds. Common in DeFi and new token launches. How to spot rug pulls.

S

Satoshi

The smallest unit of Bitcoin (0.00000001 BTC). Named after Bitcoin's pseudonymous creator, Satoshi Nakamoto.

Seed Phrase

A 12-24 word recovery phrase that backs up your crypto wallet. Write it down on paper and store it safely — never digitally. Anyone with your seed phrase controls your funds.

Slippage

The difference between the expected price and the actual execution price of a trade. Higher in low-liquidity markets.

Smart Contract

Self-executing code on a blockchain that automatically enforces agreement terms when conditions are met. The foundation of DeFi and dApps.

Stablecoin

A cryptocurrency designed to maintain a stable value, usually pegged to the US dollar (e.g., USDT, USDC, DAI). Stablecoin comparison.

Staking

Locking up crypto to help secure a PoS network and earn rewards. Similar to earning interest. Staking guide.

T

Tokenomics

The economic design of a cryptocurrency — supply, distribution, utility, and incentive mechanisms. Full tokenomics guide.

TVL

Total Value Locked — the amount of crypto deposited in a DeFi protocol. Higher TVL generally indicates more trust and adoption.

V

Validator

A node operator who validates transactions on a proof-of-stake blockchain. Validators stake tokens as collateral for honest behavior.

W

Wallet

Software or hardware that stores your crypto private keys and lets you send/receive cryptocurrency. Wallet comparison.

Web3

The vision for a decentralized internet built on blockchain, where users own their data and digital assets. Web3 explained.

Whale

A person or entity holding a very large amount of cryptocurrency, enough to influence market prices. How whales move markets.

Y

Yield Farming

Providing liquidity or staking tokens in DeFi protocols to earn token rewards. Can be lucrative but carries smart contract and impermanent loss risks.