November 9, 2026

Glossary

Fork Choice Rule

The algorithm used by blockchain nodes to determine which chain to follow when multiple valid competing chains exist.

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Forced Liquidation

The automatic closure of a leveraged cryptocurrency position when losses reach the margin maintenance threshold.

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Fork

A change to a blockchain’s protocol that creates two separate versions of the network, either a soft fork or hard fork.

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FOMO

The anxiety that a rising cryptocurrency price will continue without you, leading to impulsive buying decisions without proper research.

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Floor Price

The lowest current asking price for any NFT within a collection, used as a baseline metric for collection value.

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Flash Swap

A feature allowing users to borrow tokens from a DeFi pool and repay them within a single transaction.

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Flash Loan

An uncollateralized loan in DeFi that is borrowed and repaid within a single blockchain transaction.

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Flash Crash

A sudden and severe drop in cryptocurrency prices over a very short time period, often caused by automated trading algorithms.

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Fixed Supply

A characteristic of cryptocurrencies with a hard-coded maximum number of coins that will ever exist.

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