crypto
1 Americannoun
plural
cryptos-
a person who secretly supports or adheres to a group, party, or belief.
adjective
combining form
Usage
What does crypto- mean? Crypto- is a combining form used like a prefix meaning “hidden, secret.” It is used in many scientific, medical, and other technical terms.Crypto- comes from the Greek kryptós, meaning “hidden.” The word crypt also derives from this root. Dig up the connection at our entry for the word.In anatomy, crypto- specifically refers to a crypt in its specialized sense of a “slender pit or recess” or a “small glandular cavity.”What are variants of crypto-?When combined with words or word elements that begin with a vowel, crypto- becomes crypt-, as in cryptitis.
Etymology
Origin of crypto1
First recorded in 1945–50; probably independent use of crypto-; -o
Origin of crypto-2
Combining form representing Greek kryptós hidden. See crypt
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The hype, so to speak, is rooted in the booming popularity of Hyperliquid, a decentralized crypto exchange where investors can use Hyperliquid tokens, a kind of cryptocurrency like bitcoin or Ethereum’s ether, to trade synthetic perpetual futures tied not just to cryptocurrencies, but also to real-world assets like gold and oil.
From MarketWatch
While the broader crypto space has been mired in a painful bear market in 2026, the price of Hype tokens has risen by about 60%, according to MarketWatch calculations using data from CoinMarketCap.
From MarketWatch
By comparison, bitcoin is down 20% since the start of the year, and ether — the second-largest crypto by market value, after bitcoin — is down 28%, according to Dow Jones Market Data.
From MarketWatch
Crypto prices have been climbing in March, however, with bitcoin up roughly 8% since the start of the month.
From MarketWatch
This is the kind of art that would find a suitable home in a crypto king’s Miami mansion, and whose pretense of depth can’t conceal its wallowing in the shallows.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.