blockchain: meaning, definition, pronunciation and examples
C1-C2 / Very Common in Specific DomainsTechnical / Formal / Business
Quick answer
What does “blockchain” mean?
A digital, decentralized ledger that records transactions across many computers in a way that ensures the data cannot be altered retroactively.
Audio
Pronunciation
Definition
Meaning and Definition
A digital, decentralized ledger that records transactions across many computers in a way that ensures the data cannot be altered retroactively.
The technology that enables cryptocurrencies like Bitcoin; a system of recording information in a way that makes it difficult or impossible to change, hack, or cheat the system. It has applications beyond finance, such as supply chain tracking, voting, and smart contracts.
Dialectal Variation
British vs American Usage
Differences
No significant lexical differences. The concept and term are identical.
Connotations
None. The term is internationally standardized in the tech/finance sector.
Frequency
Equally common in both varieties within relevant professional and technological contexts.
Grammar
How to Use “blockchain” in a Sentence
[verb] + blockchain: adopt/use/implement/deploy a blockchainblockchain + [verb]: the blockchain verifies/records/secures...blockchain + [noun]: blockchain technology/network/platform/ledgerVocabulary
Collocations
Examples
Examples of “blockchain” in a Sentence
verb
British English
- They plan to blockchain the land registry to prevent fraud.
- The data was successfully blockchained for verification.
American English
- The company will blockchain the provenance of its diamonds.
- We need to blockchain these contracts for security.
adverb
British English
- The asset was transferred blockchain-securely.
- (Usage is rare and highly technical.)
American English
- The system operates blockchain-efficiently.
- (Usage is rare and highly technical.)
adjective
British English
- Blockchain-based voting could increase transparency.
- They attended a blockchain technology conference.
American English
- She is a leading blockchain developer.
- They received blockchain-related funding.
Usage
Meaning in Context
Business
Refers to a transformative technology for secure, transparent transactions and smart contracts, e.g., 'The company is exploring blockchain for supply chain management.'
Academic
Studied in computer science, cryptography, and economics as a paradigm for decentralised consensus and data integrity.
Everyday
Most commonly associated with Bitcoin and other cryptocurrencies in news reports. May be used vaguely to imply advanced, secure tech.
Technical
Precise reference to specific architectures (e.g., proof-of-work, proof-of-stake), nodes, hashes, and smart contract execution platforms.
Vocabulary
Synonyms of “blockchain”
Strong
Neutral
Weak
Vocabulary
Antonyms of “blockchain”
Watch out
Common Mistakes When Using “blockchain”
- Using it as a synonym for 'cryptocurrency' (blockchain is the underlying technology; Bitcoin is a cryptocurrency that uses it).
- Spelling as two words: 'block chain' (standard spelling is the closed compound 'blockchain').
- Incorrect article use: 'a blockchain' (specific instance) vs. 'blockchain' (the concept/technology).
FAQ
Frequently Asked Questions
No. While famously underpinning cryptocurrencies, blockchain technology has diverse applications including supply chain tracking, digital identity verification, voting systems, and smart contracts in fields like law and real estate.
It is designed to be immutable. Once data is verified and added to a block in the chain, altering it would require changing all subsequent blocks and gaining consensus across the distributed network, which is computationally infeasible for established chains.
A public blockchain (e.g., Bitcoin, Ethereum) is open for anyone to participate. A private (or permissioned) blockchain restricts access to a specific group of users, often used by businesses and consortia for faster, more controlled transactions.
It means there is no single central authority (like a bank or government server) that controls the ledger. Instead, copies of the ledger are maintained and synchronized across a distributed network of computers (nodes).
A digital, decentralized ledger that records transactions across many computers in a way that ensures the data cannot be altered retroactively.
Blockchain is usually technical / formal / business in register.
Blockchain: in British English it is pronounced /ˈblɒk.tʃeɪn/, and in American English it is pronounced /ˈblɑːk.tʃeɪn/. Tap the audio buttons above to hear it.
Phrases
Idioms & Phrases
- “on the blockchain”
- “to put something on the blockchain”
Learning
Memory Aids
Mnemonic
Think of a CHAIN of digital BLOCKs, where each block is like a page in a public ledger that's locked and linked to the previous one.
Conceptual Metaphor
A DIGITAL LEDGER BOOK (recording transactions); A CHAIN OF TRUST (linking verified data blocks); AN IMMUTABLE PUBLIC RECORD (tamper-proof history).
Practice
Quiz
What is the primary relationship between blockchain and Bitcoin?