altcoin

A1L1T1C3O1I1N1

noun

A cryptocurrency other than bitcoin.

Scrabble 9

Meanings

nounaltcoin (plural altcoins)

plural altcoins

  1. businessA cryptocurrency other than bitcoin.

    Most altcoins follow the bitcoin model of having a finite ultimate supply of coins.

    2014 June 13, Black Market Cryptocurrencies, page 47
    4 more examples

    Sure, like all the other altcoins, Dogecoin offers some variability, like a theoretical max of 100 billion versus 21 million, and a different proof-of-work algorithm, but we’re reaching Furby levels of ridiculousness here.

    2013, sdjf, “Dogecoin ~ internet meme dog coin.”, in uk.politics.misc (Usenet)

    Altcoins use either Scrypt or SHA256 encryption algorithm, because the 'project forks' are from either Litecoin or Bitcoin. […] A few crypto economists believed that Altcoins is contributed ^([sic]) to a diverse crypto commodities marketplace, which is good.

    2013, John Davidson, The Digital Coin Revolution - Crypto Currency - How to Make Money Online, JD-Biz Corp Publishing, →ISBN

    Indeed, after a week of existence, Dogecoin is already the 24th most valuable altcoin, with a total market value of $1,621,559 based on the exchange CoinedUp, though it might be worth even more elsewhere.

    2013, John Stevenson, Dogecoin - Bitcoin's poor cousin?, page 18

    MASTERCOIN […] An altcoin invented by J. R. Willett. According to the Website, “The Master Protocol facilitates the creation and trading of smart properties and user currencies as well as other types of smart contracts. […]”

    2014, Deborah Gonzalez, Managing Online Risk: Apps, Mobile, and Social Media Security, Butterworth-Heinemann, →ISBN, page 199

Origin

  1. Proto-Indo-European*h₂el-
  2. Proto-Indo-European*h₂élyos
  3. Proto-Italic*aljos
  4. Proto-Italic*aliteros
  5. Latinalter
  6. Latinalternus
  7. Latinalternō
  8. Latinalternātus
  9. Latinalternātīvus
  10. Middle Frenchalternatif
  11. Englishalternativebf.
  12. Englishalt-
  13. Latincuneus
  14. Old Frenchcoin
  15. Middle Englishcoyn
  16. Englishcoin
  17. Englishaltcoin

From alt- + coin.

Full word history & related roots →

Translations

Chinese Mandarin 替代幣 /替代币
  • 替代幣 /替代币 (tìdàibì)cryptocurrency other than bitcoin
Finnish vaihtoehtovaluutta
  • vaihtoehtovaluuttacryptocurrency other than bitcoin
French altcoin
  • altcoincryptocurrency other than bitcoin

Rhymes & wordplay

Anagrams

Cite this entry
APA

altcoin. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/altcoin

MLA

“altcoin.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/altcoin. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “altcoin,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/altcoin.

Source: altcoin on Wiktionary, CC BY-SA 4.0.