

If you’ve ever tried to follow a crypto conversation and felt completely lost, you’re not alone. The crypto space has its own unique language filled with acronyms, slang, and technical terms that can be confusing to newcomers. But don’t worry — once you understand the basics, you’ll be speaking crypto fluently in no time.
Here are 10 common crypto terms you’ll hear everywhere, along with simple explanations to help you navigate the space with confidence.
HODL started as a typo for “hold” in a 2013 Bitcoin forum post, but it quickly became a term used to describe long-term investing in crypto. If someone says they are “HODLing,” it means they are holding onto their crypto assets rather than selling, even during market crashes.
Example: “Bitcoin is down 20%, but I’m still HODLing because I believe in its long-term value.”
FOMO happens when investors rush to buy an asset because they see others making money and fear they’ll miss out on potential profits. It’s a powerful emotion that often leads to buying at high prices and regretting it later.
Example: “I bought that new altcoin at its peak because of FOMO, and now it’s down 50%.”
FUD refers to negative news or misinformation that causes panic in the market. Sometimes it’s real, but other times, it’s exaggerated or even spread intentionally to drive prices down so large investors can buy at lower prices.
Example: “There’s a lot of FUD about government regulations, but crypto always finds a way to adapt.”
DeFi refers to financial services built on blockchain technology that operate without banks or traditional financial institutions. Instead of going through a bank to get a loan or earn interest, users can do it directly through decentralized applications (dApps).
Example: “I use DeFi platforms like Aave and Uniswap to lend and trade crypto without a middleman.”
Gas fees are the transaction costs required to process operations on a blockchain. These fees vary depending on network congestion and the complexity of the transaction. Ethereum is notorious for high gas fees, but newer networks like Solana and Layer 2 solutions offer cheaper alternatives.
Example: “I wanted to buy an NFT, but the gas fees were almost as much as the NFT itself!”
A smart contract is self-executing code on the blockchain that automatically performs an action when specific conditions are met. They remove the need for middlemen and power everything from DeFi to NFTs.
Example: “When I staked my Ethereum, the smart contract automatically paid me rewards.”
Layer 2 refers to blockchain solutions that are built on top of a main blockchain (Layer 1) to improve speed and reduce fees. Ethereum Layer 2 networks like Arbitrum, Optimism, and zkSync help process transactions more efficiently.
Example: “I use a Layer 2 network to avoid Ethereum’s high gas fees.”
An NFT is a unique digital asset stored on the blockchain that represents ownership of items like art, music, or in-game items. Unlike cryptocurrencies, which are interchangeable (1 BTC = 1 BTC), NFTs are one-of-a-kind.
Example: “I bought an NFT that gives me exclusive access to a members-only club.”
A whale is an investor who holds a large amount of cryptocurrency and can influence the market by making big trades. When a whale buys or sells a massive amount of crypto, it can cause significant price swings.
Example: “A Bitcoin whale just moved 10,000 BTC, and now the market is going crazy.”
A rug pull is a scam where developers create a crypto project, attract investors, and then suddenly disappear with the funds. This usually happens in the DeFi and NFT space, where new projects pop up quickly.
Example: “That new meme coin was a rug pull — the developers disappeared overnight with millions.”
Crypto has its own language, but once you understand the basics, it becomes much easier to follow discussions, make informed decisions, and avoid common pitfalls.