Crypto Glossary — 50 Terms

Crypto Glossary: All Crypto Terms Explained

English definitions of Bitcoin, Ethereum, DeFi, NFT and other crypto terms. The COINOTAG comprehensive crypto glossary.

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What is an Airdrop? Complete Crypto Guide

An airdrop is the free distribution of cryptocurrency tokens to wallet addresses, typically used for marketing, decentralization, or rewarding early supporters.

What is a Bear Market? Complete Crypto Guide

A bear market is a prolonged period of declining asset prices, typically marked by a 20%+ drop from recent highs and persistent negative sentiment.

What is a Bull Market? Complete Crypto Guide

A bull market is a sustained period of rising asset prices, typically defined as a 20%+ increase from recent lows accompanied by strong investor sentiment.

What is a Fork in Crypto? Hard Fork vs Soft Fork

A fork is a divergence in a blockchain's rules or history, creating either a backward-compatible upgrade (soft fork) or a separate chain (hard fork).

What is the Bitcoin Halving? Complete Guide

The Bitcoin halving is a programmed event occurring every ~4 years that reduces the block reward miners earn by 50%, gradually slowing BTC issuance.

What is an ICO? Initial Coin Offering Guide

An ICO (Initial Coin Offering) is a crypto fundraising method where projects sell newly issued tokens to investors in exchange for capital.

What is an IDO? Initial DEX Offering Guide

An IDO (Initial DEX Offering) is a token launch model that uses decentralized exchanges and liquidity pools to distribute new tokens to the public.

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What is All-Time High (ATH)? Complete Guide

All-Time High (ATH) is the highest price a cryptocurrency or asset has ever reached, often used as a key reference point for traders and investors.

What is Circulating Supply? Complete Guide

Circulating supply is the number of cryptocurrency tokens publicly available and actively trading in the market, excluding locked or reserved tokens.

What is a Gas Fee? Complete Ethereum Guide

A gas fee is the cost paid to execute transactions or smart contracts on a blockchain like Ethereum, denominated in the network's native asset.

What is MACD? Complete Technical Analysis Guide

MACD (Moving Average Convergence Divergence) is a momentum indicator that shows the relationship between two moving averages of an asset's price.

What is Market Cap? Crypto Valuation Guide

Market capitalization is the total value of a cryptocurrency, calculated by multiplying the current price by the circulating supply of tokens.

What is RSI? Relative Strength Index Guide

RSI (Relative Strength Index) is a momentum oscillator that measures the speed and change of price movements, ranging from 0 to 100.

What is Trading Volume? Complete Guide

Trading volume measures the total amount of an asset traded in a period, indicating liquidity, interest, and conviction behind price moves.

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What is an Altcoin? Complete Crypto Guide

Altcoins are cryptocurrencies other than Bitcoin, ranging from major networks like Ethereum to thousands of smaller tokens with diverse use cases.

What is an AMM (Automated Market Maker)? Complete Guide

Automated Market Makers (AMMs) are smart contracts that enable decentralized token swaps through liquidity pools instead of traditional order books.

What is a Blockchain? Complete Guide

A blockchain is a distributed digital ledger that records transactions across many computers in a tamper-resistant, chronological chain of blocks.

What is a Candlestick? Complete Trading Guide

A candlestick is a chart pattern that displays the open, high, low, and close prices of an asset over a specific time period in a single visual element.

What is a Cold Wallet? Complete Crypto Guide

A cold wallet stores cryptocurrency private keys offline, providing strong protection against online threats like hackers, phishing, and malware.

What is a Consensus Mechanism? Complete Guide

A consensus mechanism is the protocol that allows distributed network participants to agree on the state of a blockchain without a central authority.

What is a DAO? Complete Crypto Guide

A DAO (Decentralized Autonomous Organization) is a member-owned community governed by smart contracts and token-based voting, without traditional management.

What is DeFi? Complete Decentralized Finance Guide

DeFi (Decentralized Finance) is an open ecosystem of blockchain-based financial applications that operate without banks, brokers, or other intermediaries.

What is a DEX? Decentralized Exchange Guide

A DEX (Decentralized Exchange) is a peer-to-peer crypto trading platform that operates via smart contracts, without custodians or central order books.

What is a Crypto ETF? Spot Bitcoin and Ethereum ETF Guide

A crypto ETF is an exchange-traded fund that tracks the price of cryptocurrencies like Bitcoin or Ethereum, providing regulated exposure via brokerage accounts.

What is a Crypto Exchange? Complete Guide

A crypto exchange is a platform where users buy, sell, and trade cryptocurrencies, available as centralized (CEX) or decentralized (DEX) services.

What is FOMO? Crypto Trading Psychology Guide

FOMO (Fear of Missing Out) is the emotional impulse to buy an asset for fear of missing further gains, often leading to poor entries near market tops.

What is FUD in Crypto? Complete Guide

FUD (Fear, Uncertainty, Doubt) refers to negative information spread to manipulate sentiment and trigger panic selling in crypto markets.

What is HODL? Complete Crypto Strategy Guide

HODL is crypto slang for holding cryptocurrency long-term regardless of volatility, popularized by a 2013 Bitcoin forum post.

What is Layer 2? Ethereum Scaling Guide

Layer 2 networks are scaling solutions built on top of base chains like Ethereum, processing transactions off-chain to deliver faster, cheaper performance.

What is a Liquidity Pool? Complete DeFi Guide

A liquidity pool is a smart contract holding two or more tokens, providing the liquidity needed for decentralized trading, lending, and yield strategies.

What is a Memecoin? Complete Crypto Guide

Memecoins are cryptocurrencies inspired by internet memes, jokes, or cultural movements, often driven by community sentiment rather than utility.

What is the Metaverse? Crypto Guide

The metaverse is a network of immersive 3D virtual worlds where users interact, create, and trade — often integrated with blockchain for digital ownership.

What is Crypto Mining? Complete Bitcoin Guide

Crypto mining validates transactions and creates new coins by solving cryptographic puzzles with specialized hardware, securing Proof of Work blockchains.

What is an NFT? Non-Fungible Token Guide

An NFT (Non-Fungible Token) is a unique blockchain-based asset that proves ownership of digital or physical items like art, collectibles, and game assets.

What is a Blockchain Node? Complete Guide

A node is a computer connected to a blockchain network that stores, validates, and relays the chain's data, contributing to its decentralization and security.

What is a Private Key? Crypto Security Guide

A private key is a secret cryptographic code that proves ownership and authorizes transactions for a cryptocurrency wallet — losing it means losing the funds.

What is Proof of Stake (PoS)? Complete Guide

Proof of Stake is a consensus mechanism where validators secure the blockchain by locking up the network's native token, with rewards for honest behavior.

What is Proof of Work (PoW)? Complete Guide

Proof of Work is the consensus mechanism used by Bitcoin, where miners compete to solve cryptographic puzzles using computational power to secure the network.

What is a Smart Contract? Complete Guide

A smart contract is self-executing code on a blockchain that automatically enforces the terms of an agreement when predefined conditions are met.

What is a Stablecoin? Complete Guide

A stablecoin is a cryptocurrency pegged to a stable asset like the US dollar, providing price stability for trading, payments, and DeFi applications.

What is Staking? Complete Crypto Guide

Staking is the process of locking up cryptocurrency to support a Proof of Stake network in exchange for rewards, similar to earning interest on a deposit.

What is Support and Resistance? Trading Guide

Support and resistance are key price levels where buying or selling pressure historically has been strong enough to halt or reverse the trend.

What is Tokenomics? Complete Guide

Tokenomics covers the economic design of a cryptocurrency, including supply, distribution, utility, governance, and incentives that drive long-term value.

What is a Validator? Complete Crypto Guide

A validator is a participant in a Proof of Stake blockchain that verifies transactions and produces blocks in exchange for staking rewards.

What is a Crypto Wallet? Complete Guide

A crypto wallet is software or hardware that stores private keys, allowing users to send, receive, and manage cryptocurrencies on the blockchain.

What is Web3? Complete Guide

Web3 is the next iteration of the internet, built on blockchain technology and emphasizing decentralization, user ownership, and token-based economies.

What is a Crypto Whale? Complete Guide

A crypto whale is an individual or entity holding a large amount of a cryptocurrency, with enough capital to influence market prices through their trades.

What is Yield Farming? Complete DeFi Guide

Yield farming is a DeFi strategy where users earn rewards by providing liquidity, lending crypto, or staking assets across various protocols.

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What is Bitcoin (BTC)? Complete Guide

Bitcoin is the first decentralized cryptocurrency, created in 2009 by Satoshi Nakamoto, with a fixed supply of 21 million coins and a peer-to-peer network.

What is Ethereum (ETH)? Complete Guide

Ethereum is a decentralized smart contract platform launched in 2015 by Vitalik Buterin, powering DeFi, NFTs, and most of the Web3 ecosystem.

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