A cryptocurrency exchange is an online platform for buying, selling and exchanging cryptocurrencies. Some exchanges work only with cryptocurrency pairs, while others let you trade for ordinary money.

A cryptocurrency is a digital form of money whose operation is based on cryptography and decentralized networks. Its issuance and transfers do not depend on a single central authority.

A cryptographer is a specialist in the field of cryptography who develops and analyzes methods of encryption and data protection. Their work underlies the security of blockchain systems.

Cryptography is the science of methods for protecting information by means of encryption. It ensures confidentiality and data integrity and underlies the operation of all cryptocurrencies.

A crowdsale is a public sale of a project's tokens to a large number of participants over the internet in order to raise financing. In essence, it is a synonym for an ICO — an initial coin offering.