Crypto Glossary
A comprehensive reference to cryptocurrency, blockchain, DeFi, tokenomics, wallets, trading, governance, security, NFTs, Layer 1s, Layer 2s, cross-chain infrastructure, and crypto market terminology.
Use this glossary to understand unfamiliar crypto terms quickly, distinguish technical concepts from market slang, and move from a concise definition to deeper ZenvestAI research and educational guides.
How to Use This Crypto Glossary
Cryptocurrency terminology spans several disciplines. A single term may describe a blockchain mechanism, financial metric, security model, governance process, trading behavior, or community convention.
This glossary therefore separates terms by subject rather than treating crypto vocabulary as one undifferentiated dictionary.
- Definition: what the term means.
- Context: why the concept matters in crypto.
- Deep guide: a link to a longer ZenvestAI article where available.
1. Blockchain Fundamentals
Core concepts describing how decentralized networks store data, propagate transactions, reach consensus, and maintain shared state.
Blockchain
A distributed ledger in which validated records are organized into cryptographically linked blocks.
Deep guide → What Is Blockchain?Block
A structured batch of blockchain data containing transactions or state updates together with consensus and metadata.
Deep guide → BlockDistributed Ledger
A shared record maintained and synchronized across multiple network participants rather than by one central database.
Deep guide → Distributed LedgerNode
Software or hardware participating in a blockchain network by storing, validating, relaying, or otherwise processing network data.
Deep guide → NodeFull Node
A node that independently verifies blockchain data according to the network’s consensus rules.
Deep guide → Full NodePeer-to-Peer (P2P)
A network architecture in which participants communicate directly rather than relying on a central server.
Deep guide → P2P NetworksConsensus
The process through which a distributed network agrees on the valid state and ordering of blockchain data.
Deep guide → ConsensusConsensus Mechanism
The protocol rules and incentives used to coordinate agreement among distributed participants.
Deep guide → Consensus MechanismsProof of Work (PoW)
A consensus mechanism in which miners expend computational work to compete for block production.
Deep guide → Proof of WorkProof of Stake (PoS)
A consensus mechanism that uses economically bonded stake to support validation and network security.
Deep guide → Proof of StakeDelegated Proof of Stake (DPoS)
A PoS design in which token holders delegate voting or validation authority to selected representatives.
Deep guide → DPoSValidator
A network participant responsible for performing consensus duties, such as proposing or attesting to blocks in Proof-of-Stake systems.
Deep guide → ValidatorsMiner
A participant that uses computational work to produce blocks in a Proof-of-Work blockchain.
Deep guide → Crypto MiningGenesis Block
The first block created in a blockchain network and the starting point of its ledger history.
Deep guide → Genesis BlockFork
A change or divergence in blockchain software or consensus rules that can create different versions of network history or protocol behavior.
Deep guide → Blockchain ForksHard Fork
A protocol change that can make previously valid blocks or transactions invalid under the new rules.
Deep guide → Hard ForkSoft Fork
A backward-compatible consensus-rule change under which upgraded nodes enforce stricter validity rules.
Deep guide → Soft ForkFinality
The point or condition at which blockchain history is considered irreversible or extremely difficult to reverse under the protocol’s model.
Deep guide → Blockchain FinalityReorganization (Reorg)
A change to the recent canonical chain history caused by competing blocks or consensus events.
Deep guide → Blockchain ReorgsMainnet
The production blockchain network where real assets and transactions have economic value.
Deep guide → MainnetTestnet
A network intended for development and testing without relying on production assets and economic conditions.
Deep guide → TestnetBlock Explorer
A web interface for inspecting blockchain transactions, addresses, blocks, contracts, and network activity.
Deep guide → Block Explorers2. Bitcoin Terminology
Bitcoin introduced much of the vocabulary now used throughout the cryptocurrency industry.
Bitcoin
The decentralized monetary network and protocol launched in 2009, as well as the asset commonly represented by BTC.
Deep guide → What Is Bitcoin?BTC
The commonly used ticker symbol for bitcoin, the native asset of the Bitcoin network.
Deep guide → BTCSatoshi
The smallest standard unit of bitcoin; one BTC equals 100 million satoshis.
Deep guide → SatoshiUTXO
An Unspent Transaction Output representing bitcoin available to be spent by a future transaction.
Deep guide → UTXO ModelBitcoin Script
Bitcoin’s stack-based scripting language used to define conditions under which transaction outputs can be spent.
Deep guide → Bitcoin ScriptHashrate
The computational rate at which mining hardware performs hash calculations.
Deep guide → Bitcoin HashrateMining Difficulty
A Proof-of-Work parameter that regulates the computational difficulty of finding valid blocks.
Deep guide → Mining DifficultyBitcoin Halving
A programmed reduction in the new BTC subsidy paid to successful miners.
Deep guide → Bitcoin HalvingBlock Subsidy
Newly created bitcoin awarded to the miner that successfully produces a valid block, distinct from transaction fees.
Deep guide → Block SubsidyTransaction Fee
A fee paid by a Bitcoin transaction sender to incentivize inclusion in the blockchain.
Deep guide → Transaction FeesLightning Network
A Bitcoin Layer-2 payment network designed to enable faster, lower-cost transactions through payment channels.
Deep guide → Lightning NetworkOrdinals
A Bitcoin protocol for assigning identifiers to individual satoshis and associating arbitrary data with them.
Deep guide → Bitcoin OrdinalsRunes
A Bitcoin token protocol designed to create and transfer fungible assets using Bitcoin’s transaction model.
Deep guide → Bitcoin RunesCovenant
A mechanism that restricts how an output may be spent in future Bitcoin transactions.
Deep guide → Bitcoin CovenantsOP_CAT
A Bitcoin Script opcode proposal associated with concatenating stack elements and enabling more expressive contract constructions.
Deep guide → OP_CAT3. Ethereum & Smart Contract Terminology
Ethereum
A programmable blockchain platform for decentralized applications, smart contracts, and digital assets.
Deep guide → What Is Ethereum?ETH / Ether
Ethereum’s native asset, used for value transfer, transaction fees, and Proof-of-Stake participation.
Deep guide → ETHEVM
The Ethereum Virtual Machine, the execution environment that processes Ethereum smart-contract code and state transitions.
Deep guide → Ethereum Virtual MachineSmart Contract
Blockchain-deployed code that executes according to predefined rules when invoked by transactions or other contracts.
Deep guide → Smart ContractsDApp
A decentralized application whose functionality relies partly or substantially on blockchain-based protocols or smart contracts.
Deep guide → DAppsGas
The unit used to measure computational work required by Ethereum transactions and smart-contract execution.
Deep guide → Ethereum GasGwei
A denomination of ETH commonly used to express gas prices.
Deep guide → GweiNonce
A transaction or account counter used by blockchain protocols to establish ordering and prevent replay of signed operations.
Deep guide → NonceEOA
An Externally Owned Account controlled by cryptographic key material rather than contract code.
Deep guide → EOA vs Smart AccountSmart Account
A programmable account implemented through smart-contract logic rather than relying solely on a conventional externally owned account.
Deep guide → Smart AccountsABI
An Application Binary Interface describing how software interacts with the functions and data structures of a smart contract.
Deep guide → Contract ABIEIP
An Ethereum Improvement Proposal describing a proposed change, standard, or process related to Ethereum.
Deep guide → Ethereum Improvement ProposalsERC
A category of Ethereum standards describing application-level interfaces and conventions.
Deep guide → Ethereum StandardsERC-20
A widely used Ethereum standard for interchangeable fungible tokens.
Deep guide → ERC-20ERC-721
A standard interface for unique, non-fungible tokens.
Deep guide → ERC-721ERC-1155
A multi-token standard supporting fungible, non-fungible, and semi-fungible asset representations.
Deep guide → ERC-1155ERC-4626
A tokenized-vault standard designed to standardize interfaces for yield-bearing vaults.
Deep guide → ERC-46264. Cryptography & Blockchain Security
Cryptography
The mathematical discipline used to protect information, authenticate messages, and control authorization in blockchain systems.
Deep guide → Cryptography in CryptoHash
A deterministic fixed-length output generated from input data by a cryptographic hash function.
Deep guide → Cryptographic HashingSHA-256
A cryptographic hash function used extensively in Bitcoin’s Proof-of-Work system.
Deep guide → SHA-256Keccak-256
The hash function used by Ethereum for several core cryptographic operations.
Deep guide → Keccak-256Public Key
A cryptographic value that can be shared publicly and is mathematically related to a corresponding private key.
Deep guide → Public KeysPrivate Key
Secret cryptographic data used to authorize actions such as signing blockchain transactions.
Deep guide → Private KeysDigital Signature
Cryptographic proof that allows a network to verify authorization and message integrity without revealing the private key.
Deep guide → Digital SignaturesECDSA
An elliptic-curve signature algorithm used by major blockchain systems for signing and verifying transactions.
Deep guide → ECDSAZero-Knowledge Proof
A cryptographic proof allowing one party to demonstrate that a statement is valid without revealing the underlying information.
Deep guide → Zero-Knowledge ProofsZK-SNARK
A compact type of zero-knowledge proof designed to prove computation or knowledge without revealing the underlying witness.
Deep guide → ZK-SNARKsZK-STARK
A zero-knowledge proof system emphasizing scalable verification and transparency without relying on a trusted setup in its standard construction.
Deep guide → ZK-STARKsMerkle Tree
A hash-based tree structure that enables efficient verification that individual data belongs to a larger committed dataset.
Deep guide → Merkle TreesMerkle Root
The top hash representing the contents of a Merkle tree.
Deep guide → Merkle RootsReplay Attack
An attack in which a valid signed message or transaction is reused in an unintended context.
Deep guide → Replay Attacks51% Attack
A situation in which an attacker gains sufficient consensus power to significantly disrupt transaction ordering or finality.
Deep guide → 51% Attacks5. Wallets, Keys & Custody
Wallet
Software or hardware that manages cryptographic keys and enables users to authorize blockchain transactions.
Deep guide → Crypto WalletsWallet Address
A public blockchain identifier used to receive assets or interact with blockchain applications.
Deep guide → Blockchain AddressesSeed Phrase
A human-readable recovery sequence used to derive or restore wallet key material in compatible wallet systems.
Deep guide → Seed PhrasesRecovery Phrase
Another common name for a wallet’s mnemonic backup phrase.
Deep guide → Recovery PhrasesHD Wallet
A hierarchical deterministic wallet capable of deriving many keys from a common seed.
Deep guide → HD WalletsHardware Wallet
A dedicated device designed to keep private keys isolated from ordinary internet-connected computing environments.
Deep guide → Hardware WalletsCold Storage
A custody approach that keeps signing keys offline or otherwise isolated from routine online access.
Deep guide → Cold StorageHot Wallet
A wallet whose key-management environment remains connected to or readily accessible through an online device.
Deep guide → Hot WalletsMultisig
A wallet or authorization scheme requiring multiple independent signatures before an action can be executed.
Deep guide → Multisig WalletsCustodial Wallet
A wallet service in which another party controls or safeguards the user’s private keys.
Deep guide → Custodial vs Non-CustodialNon-Custodial Wallet
A wallet arrangement in which the user controls the cryptographic credentials needed to authorize transactions.
Deep guide → Non-Custodial WalletsAccount Abstraction
A design approach that makes transaction validation and account behavior programmable through smart-account infrastructure.
Deep guide → Account AbstractionSession Key
A scoped cryptographic authorization that can grant an application limited or temporary transaction permissions.
Deep guide → Session Keys6. DeFi & On-Chain Finance
DeFi
Decentralized Finance: blockchain-based financial applications that use smart contracts instead of conventional financial intermediaries.
Deep guide → What Is DeFi?DEX
A decentralized exchange that enables asset trading through blockchain protocols rather than centralized custody.
Deep guide → Decentralized ExchangesAMM
An Automated Market Maker uses algorithmic pricing mechanisms and liquidity pools to facilitate decentralized trading.
Deep guide → Automated Market MakersLiquidity Pool
Smart-contract-controlled reserves of assets used to facilitate decentralized trading or other financial activity.
Deep guide → Liquidity PoolsLiquidity Provider (LP)
A participant who supplies assets to a liquidity pool in exchange for fees, incentives, or other returns.
Deep guide → Liquidity ProvidersLiquidity
The ability to buy or sell an asset with limited price impact.
Deep guide → LiquiditySlippage
The difference between an expected execution price and the actual price received for a trade.
Deep guide → SlippagePrice Impact
The movement in an asset’s execution price caused by the size of a trade relative to available liquidity.
Deep guide → Price ImpactImpermanent Loss
The relative performance difference between providing liquidity and holding the underlying assets outside the pool, caused by price-ratio changes.
Deep guide → Impermanent LossYield Farming
Deploying capital across DeFi protocols to pursue returns from fees, incentives, interest, or token rewards.
Deep guide → Yield FarmingLiquidity Mining
A mechanism that rewards users for supplying liquidity to a protocol, often with additional tokens.
Deep guide → Liquidity MiningTVL
Total Value Locked: the value of assets deposited into a protocol or DeFi ecosystem under a specified measurement methodology.
Deep guide → TVLLending Protocol
A DeFi system that enables users to supply assets for borrowing and earn interest according to protocol rules.
Deep guide → DeFi LendingCollateral
An asset deposited to secure a borrowing position against potential default.
Deep guide → DeFi CollateralLiquidation
The forced closing or partial unwinding of an undercollateralized leveraged position.
Deep guide → Crypto LiquidationsHealth Factor
A risk metric used by lending protocols to indicate how close a borrowing position is to liquidation.
Deep guide → Health FactorFlash Loan
An uncollateralized loan that must be borrowed and repaid within the same blockchain transaction.
Deep guide → Flash LoansOracle
Infrastructure that supplies external or off-chain information to blockchain applications.
Deep guide → Blockchain OraclesOvercollateralization
A lending design requiring collateral value to exceed the value of borrowed assets.
Deep guide → Overcollateralized LendingComposable
Describes protocols or applications that can interact with and build upon one another through standardized interfaces.
Deep guide → DeFi Composability7. Crypto Trading & Market Terminology
Spot Trading
Buying or selling an asset for settlement based on the current market price.
Deep guide → Spot TradingFutures
Derivative contracts that create an obligation or defined exposure to buy or sell an underlying asset at specified terms.
Deep guide → Crypto FuturesPerpetual Futures
Futures-like derivatives without a fixed expiry date, typically using funding mechanisms to keep prices aligned with spot markets.
Deep guide → Perpetual FuturesFunding Rate
A periodic payment mechanism between perpetual-contract traders designed to keep the contract price near its reference market.
Deep guide → Funding RatesLeverage
The use of borrowed capital or derivative exposure to increase the size of a trading position relative to deposited capital.
Deep guide → Crypto LeverageMargin
Collateral deposited to support a leveraged trading position.
Deep guide → Margin TradingLong
A position that benefits when the referenced asset or contract price rises.
Deep guide → Long PositionsShort
A position designed to benefit from a decline in the referenced asset or contract price.
Deep guide → Short PositionsOpen Interest
The total outstanding value or number of active derivative contracts that have not been closed.
Deep guide → Open InterestOrder Book
A live collection of outstanding buy and sell orders for a traded asset.
Deep guide → Order BooksBid
The highest price a buyer currently offers for an asset.
Deep guide → Bid-Ask SpreadAsk
The lowest price at which a seller currently offers an asset.
Deep guide → Bid-Ask SpreadBid-Ask Spread
The difference between the best available buying and selling prices.
Deep guide → Bid-Ask SpreadMarket Order
An order intended to execute immediately at available market prices.
Deep guide → Market OrdersLimit Order
An order specifying the maximum purchase price or minimum selling price at which execution is acceptable.
Deep guide → Limit OrdersArbitrage
Trading intended to capture price differences for the same or related assets across markets or venues.
Deep guide → Crypto ArbitrageVolatility
A statistical measure of how much an asset’s price varies over time.
Deep guide → Crypto VolatilityLiquidity
The depth and availability of trading activity without causing substantial price movement.
Deep guide → Market LiquidityATH
All-Time High: the highest recorded market price of an asset.
Deep guide → ATHATL
All-Time Low: the lowest recorded market price of an asset.
Deep guide → ATL8. Tokens, Supply & Tokenomics
Token
A blockchain-based digital asset or representation issued according to a protocol or smart-contract design.
Deep guide → What Is a Crypto Token?Coin
Common market terminology for a native blockchain asset such as BTC or ETH, although usage varies across the industry.
Deep guide → Coin vs TokenTokenomics
The economic design of a token, including supply, distribution, utility, incentives, emissions, and ownership structure.
Deep guide → TokenomicsMarket Capitalization
A commonly used valuation metric calculated as token price multiplied by the relevant circulating supply.
Deep guide → Market CapFully Diluted Valuation (FDV)
A valuation measure applying the current token price to a specified fully diluted token supply.
Deep guide → FDVCirculating Supply
The quantity of tokens considered to be publicly circulating under the methodology used by a particular data provider.
Deep guide → Circulating SupplyTotal Supply
The amount of tokens currently existing according to a defined supply methodology, generally excluding tokens permanently removed.
Deep guide → Total SupplyMaximum Supply
The maximum number of tokens a protocol permits under its monetary design, where such a limit exists.
Deep guide → Maximum SupplyToken Unlock
The release of previously restricted tokens into transferable or circulating supply.
Deep guide → Token UnlocksVesting
A schedule controlling when allocated tokens become transferable or usable.
Deep guide → Token VestingToken Burn
A mechanism that removes tokens from practical circulation, often by sending them to an inaccessible address or using protocol logic.
Deep guide → Token BurnsToken Emissions
The rate and schedule at which new tokens enter circulation.
Deep guide → Token EmissionsGovernance Token
A token that can provide voting or proposal rights within a protocol’s governance system.
Deep guide → Governance TokensUtility Token
A token designed to provide access, functionality, incentives, or other utility within a network or application.
Deep guide → Utility TokensVesting Cliff
A period during which an allocation remains locked before a scheduled vesting release begins.
Deep guide → Vesting Cliffs9. Stablecoins
Stablecoin
A crypto asset designed to maintain a relatively stable value, commonly relative to a fiat currency or other reference asset.
Deep guide → StablecoinsFiat-Backed Stablecoin
A stablecoin model supported by reserves intended to correspond to its outstanding supply.
Deep guide → Fiat-Backed StablecoinsCrypto-Backed Stablecoin
A stablecoin whose collateral consists primarily of crypto assets.
Deep guide → Crypto-Backed StablecoinsAlgorithmic Stablecoin
A stablecoin design that relies substantially on automated supply, collateral, or market mechanisms rather than conventional fiat reserves.
Deep guide → Algorithmic StablecoinsDepeg
A material deviation of a stablecoin from its intended reference value.
Deep guide → Stablecoin DepegsReserve
Assets held to support a stablecoin’s redemption, collateral, or stabilization mechanism.
Deep guide → Stablecoin ReservesFlatcoin
A proposed digital asset design targeting relatively stable purchasing power rather than a fixed fiat exchange rate.
Deep guide → Flatcoins10. NFTs & Digital Collectibles
NFT
A non-fungible blockchain token representing a distinct token instance rather than an interchangeable unit.
Deep guide → What Is an NFT?Mint
The process of creating or issuing a blockchain token.
Deep guide → NFT MintingMetadata
Information associated with a blockchain asset describing attributes, media, properties, or other application-level data.
Deep guide → NFT MetadataNFT Collection
A group of NFTs organized under a common project, contract, or creative identity.
Deep guide → NFT CollectionsRoyalties
Payments associated with secondary sales of digital assets, implemented according to marketplace or token-standard mechanisms.
Deep guide → NFT RoyaltiesFloor Price
The lowest listed asking price for an NFT within a defined collection or marketplace at a particular time.
Deep guide → NFT Floor Price11. DAOs & On-Chain Governance
DAO
A decentralized organization whose coordination and governance are implemented partly through blockchain-based rules and mechanisms.
Deep guide → What Is a DAO?Governance
The processes through which protocol participants make, approve, implement, or contest decisions.
Deep guide → Crypto GovernanceGovernance Proposal
A formal request for a protocol or DAO decision to be considered and voted on.
Deep guide → Governance ProposalsQuorum
The minimum participation or voting threshold required for a governance decision to be considered valid.
Deep guide → Governance QuorumDelegation
Assigning voting power to another participant without necessarily transferring ownership of the underlying tokens.
Deep guide → Governance DelegationTimelock
A mechanism that introduces a delay between an approved action and its execution.
Deep guide → Governance TimelocksMultisig Governance
A governance or administrative arrangement requiring multiple authorized signers to approve an action.
Deep guide → Multisig GovernanceAdmin Key
A privileged cryptographic authority capable of performing restricted administrative functions in a protocol.
Deep guide → Admin Keys12. Layer 1, Layer 2 & Blockchain Scaling
Layer 1
The base blockchain whose consensus and settlement infrastructure provides the foundation for applications or secondary networks.
Deep guide → Layer 1 BlockchainsLayer 2
A secondary network or protocol designed to process activity while relying on an underlying blockchain for some aspect of settlement or security.
Deep guide → Layer 2Rollup
A scaling architecture that executes transactions away from the base layer and posts transaction data or proofs back to it.
Deep guide → RollupsOptimistic Rollup
A rollup design that generally assumes submitted state transitions are valid unless challenged through a fraud-proof mechanism.
Deep guide → Optimistic RollupsZK Rollup
A rollup that uses validity proofs to demonstrate that a batch of off-chain computations was executed correctly.
Deep guide → ZK RollupsFraud Proof
A mechanism allowing participants to challenge an allegedly invalid state transition in certain scaling systems.
Deep guide → Fraud ProofsValidity Proof
A cryptographic proof demonstrating that a computation or state transition was performed according to specified rules.
Deep guide → Validity ProofsSequencer
Infrastructure responsible for ordering and processing transactions in many Layer-2 systems.
Deep guide → L2 SequencersData Availability
The property that transaction data needed to verify or reconstruct blockchain state is accessible to the relevant participants.
Deep guide → Data AvailabilityData Availability Sampling
A technique allowing participants to probabilistically verify data availability without downloading an entire dataset.
Deep guide → DASSidechain
A separate blockchain connected to another network through an interoperability mechanism but generally using its own consensus rules.
Deep guide → SidechainsState
The current set of balances, contract storage, accounts, and other protocol data representing a blockchain’s current condition.
Deep guide → Blockchain State13. Cross-Chain & Interoperability
Blockchain Bridge
Infrastructure that enables assets, messages, or data to move between otherwise separate blockchain environments.
Deep guide → Blockchain BridgesCross-Chain
Activity, applications, or infrastructure operating across multiple independent blockchain networks.
Deep guide → Cross-Chain InfrastructureInteroperability
The ability of separate blockchain systems to exchange information, assets, or instructions.
Deep guide → Blockchain InteroperabilityWrapped Token
A token representation designed to make an asset usable within another blockchain or application environment.
Deep guide → Wrapped TokensCanonical Bridge
A bridge designated by a blockchain ecosystem as its primary or native mechanism for moving assets between layers or networks.
Deep guide → Canonical BridgesBridge Validator
A participant or verification mechanism responsible for attesting to events or messages used by a bridge.
Deep guide → Bridge SecurityCross-Chain Intent
A user-specified desired outcome that specialized infrastructure can fulfill across blockchain networks.
Deep guide → Cross-Chain IntentsSolver
An actor that competes to fulfill an intent by finding or executing an efficient transaction route.
Deep guide → Intent Solvers14. MEV & Transaction Ordering
MEV
Maximal Extractable Value: economic value that can be captured through transaction inclusion, exclusion, or ordering within block production.
Deep guide → What Is MEV?Front-Running
Executing a transaction before another known or anticipated transaction to benefit from its expected market impact.
Deep guide → Front-RunningBack-Running
Placing a transaction immediately after another transaction to exploit the state change or market opportunity it creates.
Deep guide → Back-RunningSandwich Attack
An MEV strategy in which a trade is surrounded by transactions that seek to profit from its resulting price movement.
Deep guide → Sandwich AttacksBlock Builder
An entity or software system that constructs candidate blocks from available transactions and order-flow opportunities.
Deep guide → Block BuildersProposer
The consensus participant selected to propose a block in a particular block-production opportunity.
Deep guide → Block ProposersPrivate Order Flow
Transaction flow sent through private infrastructure rather than the conventional public transaction pool.
Deep guide → Private Order FlowMempool
A pool or collection of pending transactions awaiting validation and inclusion in blocks.
Deep guide → Mempool15. Crypto Security, Exploits & Risks
Rug Pull
A fraudulent or abusive project exit in which insiders withdraw value or abandon a system after attracting user capital.
Deep guide → Rug PullsSmart Contract Exploit
An attack that abuses unintended behavior or vulnerabilities in deployed contract logic to obtain an unauthorized outcome.
Deep guide → Smart Contract ExploitsReentrancy Attack
An exploit in which external execution re-enters a contract before a vulnerable state update has been safely completed.
Deep guide → Reentrancy AttacksOracle Manipulation
An attack that causes a protocol to receive distorted or exploitable external price or data information.
Deep guide → Oracle ManipulationSybil Attack
An attack in which one entity creates multiple identities to gain disproportionate influence over a system.
Deep guide → Sybil AttacksDusting Attack
A privacy-oriented attack involving tiny transfers intended to analyze or correlate wallet activity.
Deep guide → Dusting AttacksPhishing
A social-engineering attack designed to trick users into revealing credentials, signing malicious transactions, or transferring assets.
Deep guide → Crypto PhishingAddress Poisoning
A scam technique that uses deceptive transaction history or look-alike addresses to trick users into sending funds to the wrong destination.
Deep guide → Address PoisoningApproval Attack
An attack that exploits excessive or malicious token spending permissions granted to a smart contract.
Deep guide → Token ApprovalsSlashing
An economic penalty that removes or reduces stake from validators that violate protocol rules or fail specified duties.
Deep guide → SlashingDeFi Risk
The collection of smart-contract, market, liquidity, oracle, governance, counterparty, and systemic risks present in decentralized finance.
Deep guide → DeFi RiskSystemic Risk
The possibility that failures in interconnected protocols or markets propagate and create broader ecosystem instability.
Deep guide → Systemic Risk16. Staking, Restaking & Validator Economics
Staking
Committing assets to a Proof-of-Stake system to support consensus and potentially receive protocol rewards.
Deep guide → Crypto StakingDelegated Staking
A model in which token holders assign staking or voting power to another participant.
Deep guide → Delegated StakingLiquid Staking
A staking model that issues a transferable representation of staked assets or their associated economic position.
Deep guide → Liquid StakingLiquid Staking Token (LST)
A token representing an economic claim associated with staked assets in a liquid-staking system.
Deep guide → LSTsRestaking
Reusing staked economic security to support additional services or protocols.
Deep guide → RestakingActively Validated Service (AVS)
A service that uses external economic security and validator infrastructure to verify its own operations.
Deep guide → AVSLiquid Restaking Token (LRT)
A token representing an economic position in a liquid-restaking system.
Deep guide → LRTsValidator Commission
A portion of staking rewards retained by a validator or staking service in delegated or pooled staking arrangements.
Deep guide → Validator Fees17. Oracles, Data & On-Chain Analytics
On-Chain Data
Data recorded directly on a blockchain and observable through network infrastructure or explorers.
Deep guide → On-Chain DataOff-Chain
Data, computation, or activity occurring outside the blockchain’s directly recorded state.
Deep guide → Off-Chain SystemsOracle
A mechanism that communicates external data to blockchain applications.
Deep guide → Blockchain OraclesPrice Feed
A data service providing asset prices to applications such as lending markets, derivatives, and stablecoins.
Deep guide → Crypto Price FeedsWallet Clustering
Analytical techniques used to infer relationships among blockchain addresses based on transaction patterns and other evidence.
Deep guide → Wallet ClusteringTVL
A DeFi metric measuring the value of assets deposited into defined protocols or applications.
Deep guide → Understanding TVL18. Crypto Slang & Market Culture
Crypto slang is not protocol terminology. These expressions describe investor behavior, sentiment, community identity, speculation, and market psychology.
HODL
Crypto slang for holding an asset despite short-term volatility, originating from an intentional misspelling of “hold.”
Deep guide → HODLFOMO
Fear Of Missing Out: the emotional pressure to buy because prices appear to be rising rapidly.
Deep guide → FOMOFUD
Fear, Uncertainty and Doubt: negative sentiment or information that may influence market behavior.
Deep guide → FUDDYOR
Do Your Own Research: a reminder to independently evaluate an asset, protocol, claim, or investment thesis.
Deep guide → DYORWAGMI
“We’re All Gonna Make It,” a community expression of optimism or collective conviction.
Deep guide → WAGMINGMI
“Not Gonna Make It,” generally used humorously to criticize poor decisions or lack of conviction.
Deep guide → NGMIRekt
Slang describing severe financial loss, often caused by liquidation, poor trading, scams, or market crashes.
Deep guide → RektDegen
A highly speculative market participant willing to accept extreme risk for potentially large returns.
Deep guide → Crypto DegensApe / Apeing
Entering a speculative position rapidly, often with limited due diligence.
Deep guide → ApeingDiamond Hands
Slang for maintaining a position despite significant volatility or pressure to sell.
Deep guide → Diamond HandsPaper Hands
Slang for selling quickly under market pressure or volatility.
Deep guide → Paper HandsWhale
A large holder or market participant whose transactions can potentially influence liquidity or price.
Deep guide → Crypto WhalesBagholder
A holder left with an asset after a substantial decline in value, often implying an unrealized or realized loss.
Deep guide → BagholdersMoon / Mooning
Slang describing a rapid and substantial increase in an asset’s price.
Deep guide → MooningShill
Aggressive promotion of a cryptocurrency, project, or token, sometimes without transparent disclosure of incentives.
Deep guide → Crypto ShillingShitcoin
Informal and derogatory term for a cryptocurrency perceived to have weak fundamentals, utility, credibility, or long-term prospects.
Deep guide → What Is a Shitcoin?GM
“Good Morning,” a common community greeting in crypto social channels.
Deep guide → Crypto Community SlangGN
“Good Night,” commonly used as a social-community sign-off.
Deep guide → Crypto Community SlangBased
Internet slang used to express approval of a person’s opinion, action, or conviction.
Deep guide → Crypto SlangCopium
Humorous slang for rationalizing or emotionally defending a losing position or unfavorable market thesis.
Deep guide → Copium19. Advanced Crypto & Protocol Terminology
These terms belong closer to the advanced research layer of the ecosystem. They should not be treated as beginner vocabulary, but they are increasingly important for understanding modern blockchain infrastructure.
Account Abstraction
A blockchain account architecture that makes transaction validation, authorization, and execution programmable.
Deep guide → Account AbstractionERC-4337
An Ethereum account-abstraction framework enabling smart-account functionality without requiring a consensus-layer account change.
Deep guide → ERC-4337ERC-7579
A modular smart-account interface designed to standardize how account modules can be installed and used.
Deep guide → ERC-7579Paymaster
Infrastructure that can sponsor or otherwise facilitate transaction fees for smart-account users under defined rules.
Deep guide → PaymastersBundler
Infrastructure that collects and submits user operations associated with account-abstraction systems.
Deep guide → BundlersCross-Chain Intent
A transaction model in which users specify desired outcomes while specialized actors determine an execution path.
Deep guide → Cross-Chain IntentsSolver
A participant that competes to execute an intent according to defined constraints and economic incentives.
Deep guide → SolversZK Coprocessor
Infrastructure that performs computation or historical-data queries off-chain and returns a cryptographic proof that can be verified on-chain.
Deep guide → ZK CoprocessorsFHE
Fully Homomorphic Encryption enables computation over encrypted data without first exposing the underlying plaintext.
Deep guide → Fully Homomorphic EncryptionfhEVM
An EVM-oriented architecture designed to execute smart-contract computations over encrypted information using FHE techniques.
Deep guide → fhEVMModular Blockchain
A blockchain architecture that separates functions such as execution, settlement, consensus, and data availability into specialized layers.
Deep guide → Modular BlockchainsMonolithic Blockchain
A blockchain architecture in which major functions such as execution, consensus, settlement, and data availability are handled within one system.
Deep guide → Monolithic vs ModularShared Security
A security model in which multiple services or networks rely on the same underlying economic or validator security.
Deep guide → Shared SecurityRestaking
The reuse of staked economic security to support additional decentralized services.
Deep guide → RestakingAVS
An Actively Validated Service that uses validator-based economic security to verify service-specific behavior.
Deep guide → Actively Validated ServicesCascading Liquidation
A sequence of forced position closures in which one liquidation contributes to further price moves and additional liquidations.
Deep guide → Cascading LiquidationsTrust Assumption
A dependency that a system requires users to accept about operators, infrastructure, cryptography, incentives, or external components.
Deep guide → Trust AssumptionsPermissionless
Describes a system that allows participation without requiring centralized approval, subject to protocol rules.
Deep guide → Permissionless SystemsPermissioned
Describes a system in which participation or specific actions are restricted to approved entities.
Deep guide → Permissioned BlockchainsDecentralization
The distribution of control, infrastructure, validation, or decision power across multiple independent participants.
Deep guide → What Is Decentralization?Blockchain Trilemma
The commonly discussed tension among decentralization, security, and scalability in blockchain architecture.
Deep guide → Blockchain Trilemma20. Web3 & Decentralized Internet
Web3
A broad term for internet applications and infrastructure incorporating blockchain-based ownership, identity, coordination, or value transfer.
Deep guide → What Is Web3?Decentralized Application
An application whose important functionality depends on decentralized protocols or blockchain infrastructure.
Deep guide → Decentralized ApplicationsENS
Ethereum Name Service maps human-readable names to blockchain addresses and other decentralized identifiers.
Deep guide → Ethereum Name ServiceDecentralized Identity
Identity infrastructure designed to allow users greater control over credentials and identifiers without depending entirely on a central authority.
Deep guide → Decentralized IdentitySelf-Sovereign Identity
An identity model emphasizing user control over digital credentials and identity information.
Deep guide → Self-Sovereign IdentityDecentralized Physical Infrastructure (DePIN)
Networks that coordinate physical infrastructure and services through decentralized incentives and blockchain-based mechanisms.
Deep guide → DePINCrypto Glossary A–Z
Use the alphabetical index to jump directly to a term.
A
Account Abstraction · Address · Admin Key · Airdrop · AMM · Arbitrage · APR · APY · ASIC · Attestation · AVS · ATH
B
Bagholder · Bear Market · Bid · Bitcoin · Block · Block Builder · Block Explorer · Blockchain · Bridge · Bull Market
C
CEX · Cold Storage · Coin · Collateral · Consensus · Consensus Mechanism · Composability · Custody · Cross-Chain · Covenant
D
DAO · DApp · DeFi · Depeg · Delegation · DEX · Diamond Hands · Difficulty · Dusting Attack · DYOR · DPoS
E
ECDSA · EIP · ERC · ERC-20 · ERC-721 · ERC-1155 · ERC-4626 · Ethereum · EVM · EOA
F
FDV · FHE · Flash Loan · Floor Price · FOMO · Fork · Front-Running · Funding Rate · Futures · FUD · Fraud Proof
G
Gas · Genesis Block · GM · GN · Governance · Governance Token · Gwei
H
Hard Fork · Hardware Wallet · Hash · Hashrate · Health Factor · HODL · Hot Wallet
I
Impermanent Loss · Interoperability · Intent
L
Layer 1 · Layer 2 · Leverage · Limit Order · Liquidity · Liquidity Mining · Liquidity Pool · Liquidity Provider · Liquidation · Liquid Staking · LST · LRT
M
Mainnet · Market Cap · Market Order · Margin · MEV · Mempool · Merkle Root · Merkle Tree · Miner · Multisig
N
NFT · NGMI · Non-Custodial Wallet · Nonce · Node
O
Off-Chain · On-Chain · Open Interest · Oracle · OP_CAT · Optimistic Rollup
P
Paper Hands · Paymaster · Peer-to-Peer · Permissionless · Private Key · Private Order Flow · Proof of Stake · Proof of Work · Public Key
R
Recovery Phrase · Reentrancy · Reorg · Restaking · Rekt · Rollup · Rug Pull · Runes
S
Satoshi · Seed Phrase · Sequencer · Session Key · Sharding · Shill · Sidechain · Slashing · Slippage · Smart Account · Smart Contract · Solver · Stablecoin · Staking · Sybil Attack
T
Timelock · Token · Tokenomics · Token Burn · Token Unlock · Total Supply · Transaction · TVL
U
UTXO · Utility Token
V
Validator · Validity Proof · Vesting · Vesting Cliff · Volatility
W
Wallet · WAGMI · Whale · Wrapped Token · Web3
Z
Zero-Knowledge Proof · ZK-Rollup · ZK-SNARK · ZK-STARK · ZK Coprocessor
Where to Go Next
The glossary is designed as a reference layer. For readers who want to understand concepts rather than simply define them, continue into the relevant ZenvestAI learning path.
ZenvestAI Glossary Editorial Standard
ZenvestAI distinguishes between a term’s technical meaning and the way the broader crypto market may use it informally. Definitions are intended to be concise enough for reference while preserving the distinction between protocol mechanics, financial metrics, market behavior and slang.
- Protocol terms describe technical mechanisms or standards.
- Market terms describe trading, valuation, liquidity or financial behavior.
- Risk terms describe vulnerabilities, attack vectors, liquidation mechanisms or systemic exposures.
- Governance terms describe coordination and decision-making.
- Slang is identified as community language rather than formal technical terminology.
Because blockchain protocols and market structures evolve, individual definitions may be updated when standards, terminology or common usage changes.
Can’t Find a Crypto Term?
Crypto terminology continues to evolve as new protocols, standards, financial primitives and market structures emerge. If a term is missing, use the relevant ZenvestAI learning section or return as the glossary expands.
Start With Crypto Basics →