Newcomers to the crypto space often get confused by all kinds of jargon, and today I’ll help you sort out the logic.

First, let’s start with the most common ones. FOMO is definitely something you’ve heard—it's the fear you feel when you see others making money and you rush to follow along. Related to that is HODL: this word originally came from a typing mistake, later it was turned into a meme by the community. Its meaning is to hold long-term without wavering. Also, GM means saying good morning in a group chat. These terms may look simple, but they reflect the culture of the entire crypto community.

Next are descriptions of market conditions. A bear market (Bear Market) means prices generally fall, and a bull market (Bull Market) means prices generally rise. ATH is the all-time high price, and ATL is the all-time low price. If you see someone say a coin is going to moon, it means the price is expected to surge quickly. There’s also a term called rekt, derived from "wrecked," meaning you’ve lost especially badly.

Whale refers to big holders of crypto. The actions of people like this can move the market. Pump and Dump is a relatively dangerous move: you hype up the price and then quickly sell off to take profits—this falls under market manipulation.

Next are some operational and technical concepts. Staking means locking up coins to participate in network consensus and earn rewards. Mining is mining—by doing computation, you receive crypto rewards. DeFi stands for decentralized finance, which has been especially popular in recent years. A Liquidity Pool is a liquidity pool: users deposit tokens to provide liquidity for exchanges. APY is annual percentage yield, and TVL is total value locked—these two metrics are commonly used to measure the scale of DeFi projects.

Wallets and keys are very important. A Wallet is a digital tool used to store cryptocurrencies. Private Key is your private key, essentially like your bank card password—absolutely do not disclose it. Public Key is your public key, which is your address. Seed Phrase is a seed phrase: a string of words used to recover your wallet, and it also needs to be carefully kept.

Smart Contract is a smart contract, which automatically executes on the blockchain. Gas Fees are gas fees—on the Ethereum network, you need to pay to execute transactions or contracts. NFT stands for non-fungible token, representing unique digital assets. Rug Pull is a fairly common scam method: after developers attract investment, they suddenly run away.

Here are some trading-related terms, too. DYOR means doing your own research, which is a basic practice in the crypto space. FUD stands for fear, uncertainty, and doubt—it refers to the act of spreading negative information. BTD/BTFD means buying when prices drop. Shill means vigorously promoting a project.

In terms of blockchain infrastructure, Layer 1 is the base blockchain—Bitcoin and Ethereum both fall into this category. Layer 2 is a second-layer solution used to expand the underlying chain, such as Arbitrum One, Optimism, and Base. Cross-chain means cross-chain—supporting interoperability between different blockchains. Oracle is an oracle, which brings real-world data into smart contracts.

There are also some other important concepts. DAO is a decentralized autonomous organization, where community members participate together in decision-making. Airdrop is an airdrop: the project team freely distributes tokens. KYC and AML are compliance requirements—respectively, Know Your Customer and anti-money laundering. Hard Fork is a hard fork: an update that’s not compatible with older versions, which can lead to a chain split. Satoshi is the smallest unit of Bitcoin, where 1BTC equals 100 million Satoshi. Gwei is the unit used in Ethereum to measure transaction fees.

Now let’s talk about classification of cryptocurrencies. Altcoins (Altcoins) are all cryptocurrencies other than Bitcoin. Their purpose when they appear is to improve certain aspects of Bitcoin or provide new features. Ethereum is the most famous altcoin; it introduced smart contracts, enabling developers to create decentralized applications. Some altcoins focus on improving transaction speed, lowering fees, or using different consensus mechanisms, such as Proof of Stake (PoS) or Delegated Proof of Stake (DPoS).

Shitcoins (Shitcoins) is a derogatory term. It refers to cryptocurrencies that lack substantial substance and don’t have real value. Coins of this kind often lack innovation and are just minor variants of existing projects, with prices mainly driven by market hype. Development teams are often not transparent, lack a long-term support plan, and are also easy to be manipulated by the market. Investing in shitcoins carries especially high risk and may lead to major losses of funds.

Meme Coins (Meme Coins) are cryptocurrencies created based on internet culture and popular memes, usually characterized by humor and satire. These coins typically have very active communities and extremely high price volatility, because their value depends entirely on community sentiment and network trends. The most famous is Dogecoin (DOGE): it started as a humorous satire of Bitcoin, but later gained a large following. Musk has publicly supported Dogecoin, and now DOGE is also accepted by some merchants as a payment method.

A “turd coin” is the kind of project that doesn’t have a big-name technical team and doesn’t have institutional backing—often tagged with labels like "grassroots" and "shitcoin." Projects like this have a strong meme gene; sometimes the logo is just a meme image. Dogecoin is the pioneer of this category. At first, people bought it just because it was funny; as more people joined, it formed a community and created collective resonance. After a turd coin’s price goes crazy up by dozens of times, hundreds of times, or even thousands of times, it transforms into a golden turd coin, highly favored by the community. Coins like PEPE and SHIB (Shiba Inu) fall into this category; later, because the heat was so high, the community elevated them to the top.

LFG is an abbreviation for "Let's F***ing Go." It’s especially common in crypto community discussions and usually appears in discussions of meme coins or turd coins. It represents the community’s passion and determination. When everyone is bullish on a certain project, they shout "LFG" to express that energetic mindset.

Air Coins are cryptocurrencies that have absolutely no real value and no genuine applications; sometimes they’re even scam projects. These coins lack a business model, technological innovation, or real application support. Their value depends entirely on market hype and misleading promotion. The development team is often not transparent, and may even involve fraud. Investing in air coins is extremely risky: the price can be manipulated easily, volatility is especially high, and they may disappear quickly in a short period of time.

In summary, before entering the crypto space, you must do your homework. Whether it’s learning terminology or understanding coin categories, you should maintain a rational and cautious attitude. Don’t blindly follow the crowd—make sure to research and assess risks yourself, so you can move more steadily in the world of crypto.