BTCBTC$86,233+0.09%|
ETHETH$2,715.66-0.13%|
USDTUSDT$0.99990+0.01%|
BNBBNB$783.5100-0.92%|
XRPXRP$1.5100-0.46%|
USDCUSDC$0.99998+0.01%|
SOLSOL$120.2500-0.43%|
TRXTRX$0.33546-0.27%|
FIGR_HELOCFIGR_HELOC$1.0330+0.00%|
ZECZEC$1,363.61+2.99%|
HYPEHYPE$93.3100+0.06%|
DOGEDOGE$0.09555-0.75%|
LINKLINK$14.0300-1.12%|
XMRXMR$557.1100+1.77%|
ADAADA$0.27828+1.84%|
WBTWBT$86.1000+0.39%|
USDSUSDS$0.99981+0.00%|
LEOLEO$8.8900-0.56%|
RAINRAIN$0.01141-5.59%|
XLMXLM$0.21634-2.39%|
NEARNEAR$5.2400+4.70%|
BCHBCH$317.2400+0.00%|
UNIUNI$8.8700-1.74%|
LTCLTC$70.5200-0.39%|
CCCC$0.12859+2.36%|
AVAXAVAX$11.3900+3.43%|
USDEUSDE$0.99970+0.01%|
SUISUI$1.2000-2.76%|
DAIDAI$0.99991-0.01%|
HBARHBAR$0.10139-1.60%|
BTCBTC$86,233+0.09%|
ETHETH$2,715.66-0.13%|
USDTUSDT$0.99990+0.01%|
BNBBNB$783.5100-0.92%|
XRPXRP$1.5100-0.46%|
USDCUSDC$0.99998+0.01%|
SOLSOL$120.2500-0.43%|
TRXTRX$0.33546-0.27%|
FIGR_HELOCFIGR_HELOC$1.0330+0.00%|
ZECZEC$1,363.61+2.99%|
HYPEHYPE$93.3100+0.06%|
DOGEDOGE$0.09555-0.75%|
LINKLINK$14.0300-1.12%|
XMRXMR$557.1100+1.77%|
ADAADA$0.27828+1.84%|
WBTWBT$86.1000+0.39%|
USDSUSDS$0.99981+0.00%|
LEOLEO$8.8900-0.56%|
RAINRAIN$0.01141-5.59%|
XLMXLM$0.21634-2.39%|
NEARNEAR$5.2400+4.70%|
BCHBCH$317.2400+0.00%|
UNIUNI$8.8700-1.74%|
LTCLTC$70.5200-0.39%|
CCCC$0.12859+2.36%|
AVAXAVAX$11.3900+3.43%|
USDEUSDE$0.99970+0.01%|
SUISUI$1.2000-2.76%|
DAIDAI$0.99991-0.01%|
HBARHBAR$0.10139-1.60%|
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Crypto Glossary

Your complete A-Z guide to cryptocurrency terms

136+ Terms

A

2FA (Two-Factor Authentication)

A security method that verifies identity using two independent factors — typically something you know (a password) plus something you have (an authenticator app or hardware key). Essential protection for exchange and wallet accounts.

51% Attack

An attack in which a single party gains control of the majority of a blockchain network's mining or staking power, enabling them to reverse transactions or double-spend coins.

Address

A unique string of characters, derived from a public key, that identifies where cryptocurrency can be sent or held on a blockchain — similar to an account number.

Airdrop

The free distribution of tokens to wallet addresses, often used to reward early users, promote a new project, or decentralize token ownership.

Algorithmic Trading

Automated trading driven by pre-programmed rules based on price, timing, volume, or other signals, executed without manual intervention.

Altcoin

Any cryptocurrency other than Bitcoin. Short for 'alternative coin'.

AMM (Automated Market Maker)

A decentralized exchange model where prices are set by a mathematical formula and trades execute against pooled liquidity instead of a traditional order book (e.g., Uniswap).

AML (Anti-Money Laundering)

Laws, regulations, and procedures designed to prevent criminals from disguising illegally obtained funds as legitimate income.

API (Application Programming Interface)

A set of rules that lets software applications communicate with each other — used, for example, by trading bots to connect to exchanges.

ASIC (Application-Specific Integrated Circuit)

A chip engineered for one specific task. In crypto, ASIC miners are purpose-built machines that mine certain coins far faster and more efficiently than general-purpose computers.

ATH / ATL

All-Time High / All-Time Low — the highest or lowest price an asset has ever reached.

B

Bagholder

An investor left holding an asset whose value has collapsed, often after a hype cycle or pump-and-dump.

Bear Market

A prolonged period of falling prices and pessimistic sentiment.

Bitcoin (BTC)

The first and largest cryptocurrency, launched in 2009 by the pseudonymous Satoshi Nakamoto. A decentralized, peer-to-peer digital currency secured by proof-of-work mining and capped at 21 million coins.

Bitcoin Halving

A programmed event roughly every four years that cuts the reward for mining new Bitcoin blocks in half, reducing the rate of new supply.

Block

A batch of verified transactions bundled together and permanently added to the blockchain.

Block Explorer

A search tool (like Etherscan) that lets anyone look up transactions, addresses, and blocks on a public blockchain.

Block Height

The number of blocks in a chain between a given block and the very first (genesis) block.

Block Reward

Newly created coins (plus transaction fees) paid to the miner or validator who successfully adds a block to the chain.

Blockchain

A distributed, append-only digital ledger in which transactions are recorded in linked blocks, replicated across many computers, and secured by cryptography — making the history extremely difficult to alter.

Bridge

A protocol that lets tokens or data move between two different blockchains, e.g., transferring assets from Ethereum to a Layer 2 network.

Bull Market

A prolonged period of rising prices and optimistic sentiment.

Burn (Coin Burn)

Permanently removing tokens from circulation by sending them to an address no one can access, typically to reduce supply.

Buy Wall

A very large cluster of buy orders at a price level, which can act as support and signal strong demand.

C

CBDC (Central Bank Digital Currency)

A digital form of a nation's fiat currency issued and controlled by its central bank — inspired by crypto technology but centralized.

CEX (Centralized Exchange)

A crypto trading platform operated by a company that holds users' funds in custody (e.g., Binance, Coinbase).

Circulating Supply

The number of coins or tokens currently available and moving in the public market.

Cold Storage / Cold Wallet

Keeping crypto keys on a device that never touches the internet (e.g., a hardware wallet or paper backup), drastically reducing hacking risk.

Consensus Mechanism

The set of rules by which a decentralized network agrees on the valid state of the ledger — e.g., Proof of Work or Proof of Stake.

Cryptocurrency

A digital asset that uses cryptography to secure transactions and control the creation of new units, operating on a decentralized network rather than through a central authority.

Cryptography

The mathematics of securing information — encryption, digital signatures, and hashing are the foundations of all blockchain systems.

Custodial vs Non-Custodial

Custodial services hold your private keys for you (like an exchange); non-custodial wallets leave you in full control of your keys — and full responsibility for them.

D

DAO (Decentralized Autonomous Organization)

An organization governed by smart contracts and token-holder voting rather than traditional management — members propose and vote on decisions on-chain.

DApp (Decentralized Application)

An application whose backend logic runs on a decentralized network (usually via smart contracts) instead of centralized servers.

DeFi (Decentralized Finance)

An ecosystem of blockchain-based financial services — lending, borrowing, trading, earning yield — that operates through smart contracts without banks or brokers.

DEX (Decentralized Exchange)

A trading platform where users swap tokens directly from their own wallets via smart contracts, with no central custodian (e.g., Uniswap, PancakeSwap).

Diamond Hands

Slang for an investor who holds through extreme volatility without selling.

Digital Asset

Any asset that exists in digital form with defined ownership — cryptocurrencies, tokens, NFTs, and tokenized real-world assets.

Digital Signature

A cryptographic proof, created with a private key, that verifies the authenticity and integrity of a transaction or message.

Distributed Ledger (DLT)

A database that is synchronized and shared across many locations and participants, with no single point of control. Blockchain is the best-known type of DLT.

Double Spending

The risk of the same digital coin being spent twice — the core problem that blockchain consensus was invented to solve.

Dust

A tiny amount of crypto, often too small to be worth the transaction fee needed to move it.

DYOR

'Do Your Own Research' — a reminder to investigate a project independently before investing rather than relying on hype.

E

EIP (Ethereum Improvement Proposal)

A formal proposal for changes or standards on Ethereum. Accepted token standards (like ERC-20) originate from this process.

Encryption

Encoding information so that only authorized parties can read it.

ERC-20

The dominant Ethereum standard for fungible tokens, defining a common set of functions so wallets and exchanges can support any compliant token.

ERC-721

The Ethereum standard for non-fungible tokens (NFTs), where each token is unique and individually identifiable.

ERC-1155

A multi-token Ethereum standard that supports fungible and non-fungible tokens in a single contract — popular in gaming.

Ether (ETH)

The native cryptocurrency of Ethereum, used to pay transaction (gas) fees and secure the network through staking.

Ethereum

The leading smart-contract blockchain — a decentralized computing platform on which developers build DApps, DeFi protocols, NFTs, and tokens.

Exchange

A marketplace for buying, selling, and trading cryptocurrencies — either centralized (CEX) or decentralized (DEX).

F

Fiat Money

Government-issued currency (USD, EUR, INR) that has value by decree rather than by being backed by a physical commodity.

Fiat On-Ramp / Off-Ramp

Services that let users convert fiat money into crypto (on-ramp) or crypto back into fiat (off-ramp).

FOMO

'Fear Of Missing Out' — the anxiety-driven impulse to buy an asset because its price is surging.

Fork

A change to a blockchain's rules that splits it into two paths. A soft fork is backward-compatible; a hard fork creates a permanently separate chain (e.g., Bitcoin Cash from Bitcoin).

FUD

'Fear, Uncertainty and Doubt' — negative information or rumors, sometimes spread deliberately to drive prices down.

Fungible

Interchangeable — one unit is identical in value and function to any other unit (like one dollar bill for another). The opposite of non-fungible.

G

Gas

The unit measuring computational work on Ethereum. Every transaction or smart-contract action costs gas, paid in ETH.

Gas Fee

The price paid to execute a transaction on a blockchain — it rises when the network is congested.

Genesis Block

The very first block of a blockchain, hard-coded at launch.

Gwei

A denomination of Ether commonly used to quote gas prices. 1 ETH = 1,000,000,000 gwei.

H

Hard Cap

The maximum number of coins that will ever exist (Bitcoin's is 21 million), or the maximum amount a fundraise will accept.

Hardware Wallet

A physical device (e.g., Ledger, Trezor) that stores private keys offline and signs transactions securely.

Hash

The fixed-length output of a hash function — a digital fingerprint of data. Changing even one character of the input completely changes the hash.

Hash Rate

The total computational power being used to mine and secure a proof-of-work network.

HODL

Crypto slang for holding an asset long-term regardless of volatility; originated from a misspelling of 'hold' and now read as 'Hold On for Dear Life'.

Hot Wallet

A wallet connected to the internet — convenient for frequent use but more exposed to hacking than cold storage.

I

ICO (Initial Coin Offering)

A crowdfunding method where a project sells newly created tokens to early investors, usually before the product exists. Popular in 2017–18; largely superseded by more regulated models.

IEO (Initial Exchange Offering)

A token sale conducted through a crypto exchange, which vets the project and handles the sale on its platform.

Immutability

The property that data recorded on a blockchain cannot practically be altered or deleted afterwards.

Impermanent Loss

The potential loss liquidity providers face when the prices of pooled tokens diverge, compared to simply holding the tokens.

IPO (Initial Public Offering)

The traditional-finance process of listing a private company's shares on a stock exchange for the first time.

K

KYC (Know Your Customer)

Identity-verification procedures financial platforms must perform on users to comply with anti-money-laundering regulations.

L

Layer 1

A base blockchain network with its own consensus and security — e.g., Bitcoin, Ethereum, Solana.

Layer 2

A network built on top of a Layer 1 to process transactions faster and cheaper, inheriting the base chain's security — e.g., Arbitrum, Optimism, the Lightning Network.

Ledger

A record of all transactions. In crypto, the ledger is distributed across the network rather than kept by one institution.

Lightning Network

A Layer 2 payment network on Bitcoin enabling near-instant, ultra-low-fee transactions by settling most activity off-chain.

Liquidity

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

Liquidity Pool

A pot of tokens locked in a smart contract that powers trading on decentralized exchanges; contributors earn a share of trading fees.

Litecoin (LTC)

An early Bitcoin alternative launched in 2011 with faster block times and a different mining algorithm.

M

Mainnet

A blockchain's live, production network where real transactions carry real value (as opposed to a testnet).

Market Capitalization

The total value of a cryptocurrency: current price multiplied by circulating supply.

Memecoin

A cryptocurrency born from internet culture or jokes (e.g., Dogecoin, Shiba Inu) — often highly speculative, with value driven by community and hype.

MEV (Maximal Extractable Value)

Profit that block producers can capture by reordering, inserting, or censoring transactions within the blocks they create.

Miner

A participant who uses computing power to validate transactions and create new blocks on a proof-of-work blockchain, earning rewards in return.

Mining

The process of solving computational puzzles to add blocks to a proof-of-work blockchain and mint new coins.

Multisig (Multi-Signature)

A wallet setup requiring multiple private keys to approve a transaction — commonly used by teams and treasuries for extra security.

N

NFT (Non-Fungible Token)

A blockchain token representing a unique item — digital art, collectibles, game assets, membership passes, or ownership records — that cannot be exchanged one-for-one with another token.

Node

A computer that participates in a blockchain network by storing a copy of the ledger and/or validating transactions.

Nonce

A number used only once in a cryptographic process — in mining, the value miners repeatedly change while searching for a valid block hash.

O

On-Chain / Off-Chain

On-chain activity is recorded directly on the blockchain; off-chain activity happens outside it (faster and cheaper, but not secured by the chain until settled).

Open Source

Software whose source code is publicly available for anyone to inspect, use, and improve — the norm for serious blockchain projects.

Oracle

A service that feeds real-world data (prices, weather, event outcomes) into smart contracts, which cannot access outside information on their own (e.g., Chainlink).

P

P2P (Peer-to-Peer)

Direct interaction between participants without intermediaries — the architecture underlying blockchain networks.

Paper Wallet

A printed record of a wallet's keys — a simple form of cold storage, now largely replaced by hardware wallets.

Private Key

The secret code that proves ownership of crypto and authorizes transactions. Whoever holds the private key controls the funds — lose it, and the assets are gone.

Proof of Stake (PoS)

A consensus mechanism where validators lock up ('stake') coins for the right to confirm transactions; misbehavior risks losing the stake. Far more energy-efficient than mining.

Proof of Work (PoW)

A consensus mechanism where miners expend computational energy to solve puzzles, making it economically costly to attack the network. Used by Bitcoin.

Public Key

A cryptographic code derived from the private key that can be shared openly — used to generate addresses and verify signatures.

Pump and Dump

A manipulation scheme where promoters artificially inflate an asset's price with hype, then sell their holdings, crashing the price on later buyers.

R

Rug Pull

A scam in which developers attract investment into a token or protocol, then drain the funds and abandon the project.

Rollup

A Layer 2 technique that bundles many transactions and posts a compressed proof to the main chain. Optimistic rollups assume validity and allow challenges; zero-knowledge (zk) rollups prove validity mathematically.

RWA (Real-World Asset) Tokenization

Representing traditional assets — real estate, bonds, treasuries, commodities — as blockchain tokens, enabling fractional ownership and 24/7 transferability.

S

Satoshi (SAT)

The smallest unit of Bitcoin: 1 BTC = 100,000,000 satoshis. Named after Bitcoin's creator.

Satoshi Nakamoto

The pseudonymous person or group who published the Bitcoin white paper in 2008 and launched the network in 2009. Their identity remains unknown.

Scam

Any fraudulent scheme in crypto — fake ICOs, phishing sites, Ponzi yields, impersonation, and rug pulls are common forms.

Security Token

A token that represents an investment contract or traditional security (equity, debt, revenue share) and falls under securities regulation.

Seed Phrase (Recovery Phrase)

A list of 12–24 words that backs up a wallet's private keys. Anyone with the phrase controls the wallet — it must never be shared or stored digitally in plain form.

Sharding

Splitting a blockchain's data and workload into parallel segments ('shards') to increase capacity and speed.

Shilling

Aggressively promoting a coin, often for personal gain and without disclosing incentives.

Sidechain

An independent blockchain linked to a main chain via a two-way bridge, allowing assets to move between them.

Smart Contract

Self-executing code deployed on a blockchain that automatically enforces an agreement's terms — the building block of DeFi, NFTs, and DApps.

Solidity

The most widely used programming language for writing Ethereum smart contracts.

Stablecoin

A cryptocurrency designed to hold a steady value, usually pegged to a fiat currency. Types include fiat-backed (USDT, USDC), crypto-collateralized (DAI), and algorithmic (historically risky).

Staking

Locking up coins in a proof-of-stake network to help secure it and earn rewards — crypto's rough equivalent of earning interest.

STO (Security Token Offering)

A regulated fundraising event in which security tokens are sold to investors, blending blockchain issuance with securities law compliance.

T

Testnet

A parallel blockchain used for development and testing, where tokens have no real value.

Token

A digital asset issued on top of an existing blockchain (most often Ethereum) representing value, access rights, governance power, or ownership.

Tokenomics

The economic design of a token: total supply, distribution, emission schedule, utility, and incentives — key factors in evaluating any project.

Total Supply

All tokens currently in existence (mined or minted), minus any that have been verifiably burned.

TPS (Transactions Per Second)

A measure of how many transactions a network can process each second — a common benchmark for scalability.

Transaction Fee

The cost paid to have a transaction processed and included in a block; it compensates miners or validators.

TVL (Total Value Locked)

The total value of assets deposited in a DeFi protocol — a standard measure of the protocol's size and adoption.

U

Utility Token

A token that grants access to a product or service within a specific platform, rather than representing an investment claim.

V

Validator

A participant in a proof-of-stake network who stakes coins and is selected to verify transactions and propose blocks.

Vesting

A schedule that releases tokens to founders, team members, or early investors gradually over time, preventing immediate sell-offs.

Vitalik Buterin

The Russian-Canadian programmer who co-founded Ethereum, proposing it in 2013 at age 19.

Volatility

The degree to which an asset's price fluctuates. Crypto markets are famously more volatile than traditional markets.

W

Wallet

Software or hardware that stores your keys and lets you send, receive, and manage crypto. The wallet holds keys, not coins — the coins live on the blockchain.

Wash Trading

Simultaneously buying and selling the same asset to fake trading volume and mislead the market.

Web3

The vision of an internet built on decentralized protocols, where users own their data, identity, and assets via blockchain — as opposed to platform-controlled Web2.

Whale

An individual or entity holding enough of a cryptocurrency that their trades can move the market.

White Paper

A project's foundational document explaining its purpose, technology, tokenomics, and roadmap. Bitcoin's 2008 white paper started it all.

Wrapped Token

A token pegged 1:1 to an asset from another chain (e.g., Wrapped Bitcoin on Ethereum), enabling that asset to be used in a foreign ecosystem.

Y

Yield Farming

Moving crypto between DeFi protocols to maximize returns from interest, fees, and token rewards — high potential yield, high risk.

Z

Zero-Knowledge Proof (ZKP)

A cryptographic method for proving a statement is true without revealing the underlying data — powering privacy tools and zk-rollup scaling.