blockchain

noun

block·​chain ˈbläk-ˌchān 

: a digital database containing information (such as records of financial transactions) that can be simultaneously used and shared within a large decentralized, publicly accessible network

also : the technology used to create such a database

The technology at the heart of bitcoin and other virtual currencies, blockchain is an open, distributed ledger that can record transactions between two parties efficiently and in a verifiable and permanent way.

—Marco Iansiti and Karim R. Lakhani

Examples of blockchain in a Sentence

Recent Examples on the Web

Wood said she is not deterred by the possibility of a stock market pullback, and ARK Invest is continuing to invest in innovation plays around robotics, AI, blockchain, and energy storage. —Marco Quiroz-Gutierrez, Fortune, 28 Oct. 2025

Measuring Corporate Adoption Treasury departments evaluate blockchain implementation through traditional financial metrics. —Matthew Kayser, USA Today, 24 Oct. 2025

There are several ways of using the blockchain for commercial real estate finance. —Diana Olick, CNBC, 21 Oct. 2025

Because every crypto payment is locked into the blockchain’s permanent ledger, in most cases there’s no way to reverse them. —Jesse Hyde, Rolling Stone, 21 Oct. 2025

Word History

First Known Use

2011, in the meaning defined above

Rhymes for blockchain

• abstain
• airplane
• alkane
• arcane
• arraign
• attain
• backplane
• betaine
• biplane
• butane
• campaign
• cetane