Fair AI
A decentralized approach to artificial intelligence that promotes equitable data ownership by rewarding users for contributing data or computing power.
Fakeout
A market movement that appears to signal a trend breakout but quickly reverses, misleading traders into entering false positions.
Falling Knife
A term for an asset undergoing rapid decline in price, warning traders of the risks of buying into downward momentum too early.
Falling Wedge
A bullish chart pattern where price moves within a narrowing, downward-sloping range—typically signaling a potential trend reversal upward.
Fan Token
A type of cryptocurrency issued by a sports team or organization, giving fans voting rights, exclusive content, and access to rewards.
FATF Travel Rule
A compliance requirement for crypto service providers to share sender and receiver details during large virtual asset transfers, per FATF guidelines.
Faucet
A tool, usually a website or app, that rewards users with small amounts of cryptocurrency for completing simple tasks or verification steps.
Fee Tiers
A structured pricing system used by exchanges where fees vary based on user activity such as trading volume or membership level.
Fiat
Government-issued currency that is not backed by a physical asset but by legal decree (e.g., USD, EUR), available as cash or digital credit.
Fiat On-Ramp
A service that allows users to purchase cryptocurrency using traditional fiat currency, typically via credit card, bank transfer, or payment apps.
Fiat-Pegged Cryptocurrency
A digital asset that maintains its value by being directly tied to a specific fiat currency, such as USD or EUR.
Fibonacci Retracement Level
A technical analysis tool using ratios derived from the Fibonacci sequence to identify potential support and resistance levels during price corrections.
Field Programmable Gate Array (FPGA)
A reprogrammable semiconductor device that can be customized after manufacturing, often used in mining or specialized blockchain applications.
Financial Action Task Force (FATF)
An intergovernmental body that sets international standards for combating money laundering, terrorism financing, and other illicit financial threats.
Financial Crimes Enforcement Network (FinCEN)
A U.S. Treasury bureau responsible for enforcing AML/CFT laws and collecting data on financial transactions to combat crime and terrorism.
Financial Transactions and Reports Analysis Centre (FINTRAC)
Canada’s financial intelligence unit, responsible for detecting and preventing money laundering and financing of terrorism.
First In, First Out (FIFO)
A method for calculating crypto taxes where the first assets purchased are considered the first ones sold when determining gains or losses.
First-Mover Advantage (FMA)
The strategic benefit gained by being the first to launch a product or service, often leading to early market capture and brand loyalty.
Fish
A slang term in crypto for someone with a small investment or low market influence—opposite of a whale.
Flash Crash
An abrupt and extreme drop in asset price over a very short time frame, often caused by low liquidity, panic selling, or automated trading errors.
Flash Loan
A type of DeFi loan where borrowed funds are used and repaid within the same transaction block, requiring no collateral.
Flash Loan Attack
A DeFi exploit where attackers manipulate markets or protocols using uncollateralized flash loans to gain unfair profits.
Flash Loans
Unsecured loans in DeFi that must be borrowed and repaid within the same transaction, used for arbitrage, refinancing, or governance attacks.
Flashbots
A research group focused on reducing the harmful effects of Maximal Extractable Value (MEV) in Ethereum by increasing MEV transparency and access.
Flatcoin
A type of stable cryptocurrency pegged to the cost of living or inflation metrics, instead of fiat currencies or commodities.
Flippening
A hypothetical event where Ethereum surpasses Bitcoin in market capitalization, signaling a shift in blockchain dominance.
Flipping
A strategy where assets are bought with the intent to quickly resell at a profit, commonly seen in NFT and token markets.
FOMO
Short for “Fear of Missing Out,” describing the anxiety that drives traders to enter a market prematurely due to rising prices or hype.
Fork (Blockchain)
A split in a blockchain that creates two separate paths, either as a planned upgrade or a disagreement in the network’s consensus rules.
Fork (Software)
A new software project derived from existing open-source code, typically involving customizations or new features.
Fork Choice Rule
A protocol rule that helps blockchain nodes decide which chain to follow when multiple valid chains are present, especially during network forks.
Fractional Stablecoins
Stablecoins backed by a mix of collateral and algorithms, balancing price stability through both asset reserves and protocol rules.
Fraud Proof
A mechanism used in Optimistic Rollups that challenges invalid transactions by requiring evidence before altering the main blockchain state.
Front Running
A tactic where someone uses advanced knowledge of upcoming transactions to gain profit by placing their own trade just before it.
FUD (Fear, Uncertainty, Doubt)
A tactic used to spread negative or misleading information about a project or market to cause panic or discourage participation.
FUDster
Someone who deliberately spreads FUD—fear, uncertainty, and doubt—to influence prices or sentiment in the crypto market.
Full Node
A blockchain node that stores the complete history of transactions and actively verifies network rules and consensus.
Fully Diluted Value (FDV)
The estimated market cap of a cryptocurrency if all possible tokens were in circulation, including locked or reserved supply.
Fully Homomorphic Encryption (FHE)
A cryptographic method that allows computation on encrypted data, producing the correct result without needing to decrypt it.
Fundamental Analysis (FA)
A method for evaluating assets by analyzing their intrinsic value, financial health, and broader economic factors rather than price trends.
Funding Payments
Periodic payments exchanged between long and short traders in perpetual futures markets to keep contract prices aligned with spot prices.
Fungible
A property where individual units of an asset are interchangeable and indistinguishable in value (e.g., 1 BTC = 1 BTC).
Fusion Rollups
A hybrid scaling solution that combines features of app-specific chains and shared rollups to enhance performance and flexibility on L2.
Futo
A private organization supporting the development of decentralized technologies, privacy tools, and open-source software projects.
Futures
Contracts that obligate buyers and sellers to trade an asset at a predetermined price on a future date, used for hedging or speculation.