Crypto Glossary
Plain-language definitions for common cryptocurrency terms. No jargon, no hype—just clear explanations.
For detailed explanations, check out our Glossary category posts.
Address
A string of characters used to receive cryptocurrency, similar to an email address or bank account number.
Blockchain
A distributed digital ledger that records transactions across many computers in a way that makes it difficult to alter past entries.
Cold Wallet / Cold Storage
A cryptocurrency wallet that is not connected to the internet, providing better security against hacking.
Custodial Wallet
A wallet where a third party (like an exchange) holds your private keys and manages your crypto for you.
DeFi (Decentralized Finance)
Financial services built on blockchain that don't require traditional intermediaries like banks. High risk; see our DeFi Explained post.
Exchange
A platform where you can buy, sell, or trade cryptocurrencies. Can be centralized (company-run) or decentralized (protocol-based).
Gas / Gas Fee
A fee paid to process transactions on certain blockchains like Ethereum. Fees vary based on network activity.
Hardware Wallet
A physical device that stores your private keys offline, providing enhanced security for cryptocurrency storage.
Hot Wallet
A cryptocurrency wallet connected to the internet, more convenient but less secure than cold storage.
KYC (Know Your Customer)
Identity verification required by regulated exchanges and services, typically requiring ID documents and personal information.
Non-Custodial Wallet
A wallet where you control your own private keys. You have full control but also full responsibility for security.
NFT (Non-Fungible Token)
A unique digital asset verified on a blockchain. See our NFT Basics post.
Phishing
A scam where attackers impersonate legitimate services to steal your credentials or private keys. See Phishing Guide.
Private Key
A secret code that proves ownership of cryptocurrency and allows you to authorize transactions. Never share this with anyone.
Public Key
A cryptographic code derived from your private key that can be shared publicly. Your address is often derived from your public key.
Seed Phrase / Recovery Phrase
A list of 12-24 words that can restore access to your wallet. This is the master key to your crypto—protect it carefully. See our Seed Phrase Security guide.
Stablecoin
A cryptocurrency designed to maintain a stable value, often pegged to a fiat currency like the US dollar. See Stablecoins Explained.
Transaction Fee
A fee paid to process and confirm a blockchain transaction. Amount varies by network and congestion.
Two-Factor Authentication (2FA)
An additional security layer requiring two forms of verification (e.g., password + code from app). See our 2FA Guide.
Wallet
Software or hardware that stores your private keys and allows you to send and receive cryptocurrency.
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