Crypto Glossary
Plain-English definitions of the cryptocurrency, blockchain and trading terms you will meet as you learn.
F
FOMO (Fear of Missing Out)
FOMO, short for fear of missing out, describes investor psychology based on the fear of missing opportunities: the urge to buy an asset quickly because…
FUD (Fear, Uncertainty, Doubt)
FUD, short for fear, uncertainty and doubt, means spreading fear and misinformation about a coin, a project or the market as a whole, often to push…
Fakeout
A fakeout is a sudden and temporary price movement that tricks traders into thinking a new trend is emerging in the market, when in fact it is not.
Fiat
Fiat is traditional government-issued currency, such as the US dollar, the euro or the Turkish lira.
Fiat On-Ramp
A fiat on-ramp is a method of buying cryptocurrency with fiat, meaning traditional government-issued money such as US dollars, euros or Turkish lira.
Flash Loan Attack
A flash loan attack occurs when malicious actors exploit smart contracts with the help of a flash loan: a loan that is borrowed and repaid within a…
Fork
A fork is a blockchain split into two versions. It happens when part of the network starts following different rules, or a different chain of blocks…
Fraud Proof
A fraud proof is a technical method used in an Optimistic Rollup (OR) that works together with a bond to keep a decentralized system honest.
Front Running
Front running is when someone who has information about a future transaction adds their own transaction to the queue ahead of it, aiming to profit from…
Full Node
A full node is a computer running blockchain software that downloads the entire blockchain history and checks every block and transaction against the…
Fully Homomorphic Encryption
Fully homomorphic encryption (FHE) is a type of encryption scheme that allows arbitrary computation on encrypted data.
Fungible
Fungible describes the ability to exchange any unit of a cryptocurrency or token for another identical unit of the same cryptocurrency or token.