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Cryptocurrency Glossary

Comprehensive definitions of key terms in the cryptocurrency and blockchain space.

Airdrop

Investment

A distribution of free tokens to users, often used to reward early adopters or bootstrap networks.

Altcoin

Cryptocurrency

Any cryptocurrency other than Bitcoin, often built to explore new features or niches.

APY vs APR

Investment

APR is a simple yearly rate, while APY includes compounding effects on returns.

Bitcoin

Cryptocurrency

The first decentralized cryptocurrency, launched in 2009, that uses proof-of-work to secure a peer-to-peer payments network.

Blockchain

Technology

A distributed ledger that records transactions in linked blocks secured by cryptography, creating an auditable and tamper-resistant history.

Bridge

Technology

A protocol that moves assets between blockchains, enabling cross-chain activity.

Bridge Risk

Security

The security and operational risks involved in moving assets across blockchains.

Cold Storage

Security

Storing crypto keys offline to reduce exposure to online attacks.

Collateralization Ratio

DeFi

The percentage of collateral backing a loan or stablecoin, used to measure safety margins.

Custodial Wallet

Security

A wallet where a third party (like an exchange) holds the private keys on your behalf.

Custody

Security

Who controls private keys for crypto assets—either the user (self custody) or a third party.

DAO

Technology

A decentralized autonomous organization governed by token holders via on-chain votes.

DApp (Decentralized Application)

Technology

An application that runs on a blockchain or decentralized network rather than a centralized server.

DeFi (Decentralized Finance)

DeFi

Financial services built on blockchains that operate without traditional intermediaries like banks.

DEX (Decentralized Exchange)

Trading

A crypto exchange that allows users to trade directly from wallets without a central intermediary.

Ethereum

Cryptocurrency

A programmable blockchain that supports smart contracts and decentralized applications, with ETH as its native token.

Exchange

Trading

A platform where users can buy, sell, or trade cryptocurrencies.

Finality

Technology

The point at which a transaction is considered irreversible on a blockchain.

FOMO

Trading

Fear of Missing Out, the urge to buy quickly to avoid missing a potential rally.

FUD

Trading

Fear, uncertainty, and doubt, often spread to influence market sentiment.

Funding Rate

Trading

A periodic payment between long and short traders in perpetual futures to keep prices aligned with spot.

Gas Fee

Technology

A transaction fee paid to validators for processing and securing blockchain operations.

Gas Limit

Technology

The maximum amount of computational work a transaction is allowed to use.

Halving

Cryptocurrency

A scheduled reduction in block rewards on certain chains, notably Bitcoin, which slows new supply.

HODL

Trading

A community term meaning to hold crypto long term despite volatility.

Hot Wallet

Security

A crypto wallet connected to the internet, offering convenience but higher exposure to attacks.

ICO (Initial Coin Offering)

Investment

A fundraising method where projects sell tokens to early supporters in exchange for capital.

Impermanent Loss

DeFi

The opportunity cost liquidity providers may face when asset prices move in an AMM pool.

KYC/AML

Regulation

Know Your Customer and Anti-Money Laundering checks used by regulated platforms to verify users.

Layer 2

Technology

A scaling system built on top of a base blockchain to improve speed and reduce costs.

Limit Order

Trading

An order to buy or sell at a specified price or better.

Liquidation

DeFi

The forced closing of a position when collateral value falls below required thresholds.

Liquidity

Trading

How easily an asset can be bought or sold without significantly moving its price.

Liquidity Pool

DeFi

A pool of tokens locked in a smart contract that enables trading and yields for liquidity providers.

Market Cap

Trading

The total value of a cryptocurrency, calculated as price multiplied by circulating supply.

Market Order

Trading

An order that executes immediately at the best available price.

MEV (Maximal Extractable Value)

Technology

The additional value validators or searchers can extract by reordering or inserting transactions.

Mining

Technology

The process of validating transactions and securing a proof-of-work blockchain in exchange for rewards.

NFT (Non-Fungible Token)

NFTs

A unique digital asset that represents ownership of an item or piece of content on a blockchain.

Non-Custodial Wallet

Security

A wallet where you control the private keys, giving you full ownership of your crypto.

Oracle

Technology

A service that brings external data on-chain, enabling smart contracts to react to real-world events.

Order Book

Trading

A list of buy and sell orders for an asset, showing liquidity and price depth.

Private Key

Security

A secret cryptographic key that grants control over crypto assets and must be kept secure.

Proof of Stake (PoS)

Technology

A consensus mechanism where validators lock up tokens to propose and validate new blocks.

Proof of Work (PoW)

Technology

A consensus mechanism where miners compete to solve computational puzzles to secure the network.

Public Key

Security

A cryptographic key derived from a private key that can be shared to receive funds.

Rollup

Technology

A Layer 2 system that batches transactions off-chain and posts proofs to a Layer 1 blockchain.

Rug Pull

Security

A scam where project insiders drain liquidity or abandon a token, leaving holders with losses.

Seed Phrase

Security

A list of words that backs up a wallet and can restore access to funds if a device is lost.

Self-Custody

Security

Managing your own private keys, giving you full control and responsibility over crypto funds.

Sidechain

Technology

A separate blockchain connected to a main chain via a bridge, with its own security model.

Slippage

Trading

The difference between the expected price of a trade and the actual execution price.

Slippage Tolerance

Trading

The maximum price impact a trader is willing to accept when executing a trade.

Smart Contract

Technology

Self-executing code on a blockchain that runs when predefined conditions are met.

Stablecoin

Cryptocurrency

A cryptocurrency designed to maintain a stable value, typically pegged to a fiat currency like the US dollar.

Stablecoin Peg

Cryptocurrency

The mechanism that keeps a stablecoin's value aligned to its target, such as $1.

Stablecoin Reserve

Cryptocurrency

Assets backing a stablecoin’s peg, such as cash, short-term treasuries, or crypto collateral.

Staking

Investment

Locking tokens to help secure a network and earn rewards, common in proof-of-stake systems.

Token

Cryptocurrency

A digital asset issued on an existing blockchain, often representing utility, access, or governance.

Tokenomics

Investment

The economic design of a token, including supply, distribution, incentives, and utility.

TVL (Total Value Locked)

DeFi

The value of assets deposited in a DeFi protocol, often used as a rough measure of usage.

Validator

Technology

A network participant that proposes or validates blocks, typically in proof-of-stake systems.

Wallet

Security

Software or hardware that stores the keys used to manage and transact with cryptocurrencies.

Whale

Trading

An individual or entity that holds a large amount of crypto and can influence market prices.

Yield Farming

DeFi

A DeFi strategy where users deploy assets across protocols to maximize rewards.