The fact is, in a space that evolves as rapidly as crypto, no one really is an expert. But knowing where to start can help make the subject more approachable to anyone. To that end, below is a glossary of terminology and key concepts in the space — it covers the basics of cryptography and blockchain, smart contracts and applications, security/privacy, and other useful definitions. We hope this glossary serves as both an introduction and as a reference for newcomers and crypto veterans alike.