blockchain
noun
blockchain is spelled B-L-O-C-K-C-H-A-I-N: 10 letters and 2 syllables. It appears 4.6 times per million words in written English, the 11,870th most frequent word form (wordfreq, 2021 data). As a noun, blockchain means “A shared record of past transactions in a distributed network, typically used for cryptocurrency” (English Wiktionary, September 2026). The plural of blockchain is blockchains.
How many letters and syllables are in blockchain?
| Letters | 10: B-L-O-C-K-C-H-A-I-N |
|---|---|
| Syllables | 2 (from its American pronunciation) |
| In writing | 4.6 times per million words; the 11,870th most frequent word form |
| Wrong spellings searched | none measured in search |
| Pairs people search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media); Bing searches in the United States: the average month from September 2025 to August 2026 (Microsoft Advertising keyword data through DataForSEO, read September 30, 2026).
How common is blockchain?
Blockchain appears 4.6 times per million words in written English, the 11,870th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce blockchain?
Blockchain has 2 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Vealhurl-blockchain.wav, Wikimedia Commons (author and licence on each file's page).
Words people confuse with blockchain
Word pairs people search, with the monthly searches for “a vs b” (G: Google, B: Bing, United States).
Also written: block chain (one word or two).
Sources: Google and Bing searches (September 2025 to August 2026, through DataForSEO); English Wiktionary (homophones, alternative spellings).
Forms of blockchain
- blockchains plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does blockchain mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
A shared record of past transactions in a distributed network, typically used for cryptocurrency.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Blockchain in Spanish, French, German and Portuguese
In the sense shared record:
| Language | Words |
|---|---|
| French | chaîne de blocs, blockchain |
| German | Blockchain, Blockkette |
| Spanish | cadena de bloques, blockchain |
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does blockchain come from?
From block + chain, from earlier “block chain”. In the 2008 Bitcoin paper block and chain are used separately; the concept is referred to as “chain of hash-based proof-of-work” or “chain of digital signatures”.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).