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bitcoin

American  
[bit-koin] / ˈbɪtˌkɔɪn /

noun

  1. Often Bitcoin the first widely established cryptocurrency, which uses state-of-the-art cryptography, can be issued in any fractional denomination, and has a decentralized distribution system.

    Increasing numbers of stores and online businesses accept Bitcoin.

  2. a single unit of bitcoin, the first widely established cryptocurrency.

    The value of a bitcoin has sometimes surpassed the value of an ounce of gold.


Usage

What's the difference between bitcoin, cryptocurrency, and digital currency? See digital currency ( def. ).

Etymology

Origin of bitcoin

First recorded in 2005–10; bit 3 ( def. ) + coin

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.

Other major cryptocurrencies are lower as well, with bitcoin cash sinking 13.7% to $296.26 while solana falls 4.4% to $80.08 and ethereum is down 4.4% to $1,973.

From The Wall Street Journal • May 28, 2026

“These outflows appear to be more consistent with a broad retreat by investors from the debasement trade, potentially in anticipation of an Iran-U.S. deal, rather than with a rotation from bitcoin to gold,” he says.

From MarketWatch • May 28, 2026

Find insight on bitcoin, IBM, Snowflake and more in the latest Market Talks covering technology, media and telecom.

From The Wall Street Journal • May 28, 2026

JPMorgan strategist Nikolaos Panigirtzoglou offers this chart showing how bitcoin and gold exchange-traded funds have seen two weeks of outflows.

From MarketWatch • May 28, 2026

The Winklevoss twins in January 2025 had reluctantly agreed to pay $5 million to settle with the CFTC, which accused Gemini of making false statements in connection with a bitcoin futures launch on another exchange.

From The Wall Street Journal • May 28, 2026

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