Cryptocurrency is just one application of blockchain technology, but the two terms are not interchangeable. Blockchain technology has the potential to be used for a wide range of applications beyond just cryptocurrency, such as supply chain management, voting systems, and real estate record keeping.

Cryptocurrency is a digital or virtual currency that uses cryptography for secure financial transactions. It is based on decentralized ledger technology, known as blockchain, which allows for the secure and transparent recording of transactions.

Blockchain technology is a distributed, decentralized, and immutable digital ledger that is used to record transactions across a network of computers. It allows multiple parties to reach consensus on the state of a shared digital history without the need for a central authority.

In summary, cryptocurrency is a type of digital asset that is based on blockchain technology, while blockchain is the underlying technology that enables the secure and transparent recording of transactions.