alt·​coin ˈȯlt-ˌkȯin How to pronounce altcoin (audio)
plural altcoins
: any of various cryptocurrencies that are regarded as alternatives to established cryptocurrencies and especially to Bitcoin
Since then, thousands of new altcoins … have been created and added into the crypto ecosystem. "Altcoin" refers to any type of cryptocurrency other than Bitcoin.Meghan DeMatteo
Ethereum's surge has triggered wider interest in the altcoin universe from retail investors with cash to burn …Postmedia Breaking News
… major cryptocurrency projects like Bitcoin and Ethereum, and smaller

Examples of altcoin in a Sentence

Recent Examples on the Web Select from over 20 payment options, find your favorite altcoins, and get a welcome package of up to $6,000 + 100 free spins. Sponsored Content, The Mercury News, 11 Mar. 2024 The current bull run is acting as if all the red capes in the world are waved, with the dynamic duo of BTC and ETH pulling the entire altcoin market ahead. Victoria Chynoweth, Forbes, 29 Feb. 2024 Solana prices spiked today, pushing higher as traders rotated into the altcoin after benefiting from sharp gains in bitcoin and ether. Charles Lloyd Bovaird Ii, Forbes, 29 Feb. 2024 Gaining Institutional Trust Solana's price increase in the altcoin market also proves there's a shift among investors. Tyler Shepherd, The Courier-Journal, 23 Feb. 2024 After the Securities and Exchange Commission’s aggressive stance labeling many altcoins as securities in lawsuits against Coinbase and Binance last week, cryptocurrencies such as Solana and Polygon saw their value plummet. Byleo Schwartz, Fortune Crypto, 14 June 2023 This is due to Bitcoin’s dominance increasing significantly recently, leaving altcoins behind. Billy Bambrough, Forbes, 18 Apr. 2023 Solana, another altcoin, also jumped into the top five most valuable cryptocurrencies recently in part because of its transaction processing ability. Fortune, 24 Nov. 2021 Listing promising altcoin is a big part of our strategy. Oluwaseun Adeyanju, Forbes, 9 June 2022

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'altcoin.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


alt- + -coin (in bitcoin)

First Known Use

2011, in the meaning defined above

Time Traveler
The first known use of altcoin was in 2011

Dictionary Entries Near altcoin

Cite this Entry

“Altcoin.” Dictionary, Merriam-Webster, Accessed 20 Jun. 2024.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!