What does cryptocurrency mean?
Cryptocurrency is a digital asset used as a medium of exchange, a unit of account, or sometimes a store of value. Its transactions are secured through cryptographic techniques, and many cryptocurrencies maintain a shared, decentralized ledger that participants verify without relying on a central intermediary. This design can make transfers faster and available across borders, but it does not make cryptocurrency inherently anonymous, stable, or free from fraud: users still face security risks, price volatility, regulatory uncertainty, and the loss of access to private keys. In everyday usage, the word often includes both decentralized digital currencies and blockchain-based tokens, although the legal treatment of these assets differs between countries and may not match their technical design. The shorter form “crypto” is common in finance, technology, and general media. Cryptocurrency remains important because it extends the idea of money to assets that exist only as entries in digital systems, while raising broader questions about trust, control, payment networks, and the role of intermediaries.
nounA cryptocurrency is a digital asset used as a medium of exchange, a unit of account, or a store of value whose transactions are secured by cryptography. Many operate on decentralized ledgers, although not all cryptocurrencies do.
- A digital currency or token that uses cryptography to secure transactions and is commonly recorded or verified on a decentralized ledger.
"She converted part of her savings into cryptocurrency after researching its volatility and security risks."
"The company accepts cryptocurrency for some of its online services."
"A new regulation could affect cryptocurrency exchanges operating in the country."
Used when referring to multiple distinct cryptocurrencies, such as different networks, tokens, or digital assets.
"Investors compared several cryptocurrencies before deciding where to invest."
Cryptography, designed to secure information, became the backbone of a new kind of money that exists without coins, banks, or paper.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does cryptocurrency come from?
Cryptocurrency is a compound of crypto- and currency. The first element is associated with cryptography, which comes from Greek kryptos, meaning “hidden” or “concealed,” and graphein, meaning “to write”; related words include cryptic and cryptogram. Currency comes through Old French from Latin currere, meaning “to run,” a root also behind current, and the compound term became established in public usage around the emergence of decentralized digital currencies in the late 2000s and early 2010s.
Related word forms
How cryptocurrency is actually used
The term is neutral in general, financial, and technical writing. “Crypto” is the common informal abbreviation, while “coin” and “token” may distinguish narrower types and are not always exact synonyms.
Easily confused with cryptocurrency
A crypt is an underground chamber, usually beneath a church or other building; cryptocurrency instead uses cryptography to secure digital transactions.