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.

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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

U.S. stock futures fell Sunday, following a weekend slide by bitcoin and Friday’s massive sell-off in precious metals capped a tumultuous first month of 2026.

From The Wall Street Journal

Polymarket’s rise comes as wagering on sports, bitcoin, elections and just about everything else has grown ubiquitous, and barriers between traditional investments, crypto and gambling are eroding.

From The Wall Street Journal

Bitcoin traded at $76,979 on Sunday afternoon, continuing a decline to levels last seen in April 2025.

From Barron's

On Saturday, Bitcoin experienced a nearly 7% drop, reaching approximately $77,966, its lowest 4 p.m. level since April 8, 2025.

From Barron's

On Saturday, Bitcoin fell nearly 7% to around $77,966, according to Dow Jones Market Data, which tracks the price as of 4 p.m. daily.

From Barron's