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Glossary
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- Layer-1 Layer-1 (L1) is the literal base of a blockchain network. It handles all transactions on its own, without needing to resort to another network. The "main" level does all the important work and is where everything starts. Transactions are recorded, checked, and finished on the core network, which is a Layer 1 chain. When you send Bitcoin to someone or exchange tokens on Ethereum, you're using a Layer 1 network. Layer 1 is where the "rules of the game" are set. It tells you how fast transactions are, how much they cost (in gas fees), and how decentralized the network really is. They are the network's final source of truth. Higher layers, such Layer 2 solutions that are faster or cheaper, are created on top of them, which is why it's called "Layer 1." With no middleman needed, these chains give crypto the security and decentralization it needs to be trustless. But they often have to deal with the "blockchain trilemma," which is finding a way to balance security, decentralization, and scalability, or being able to handle a lot of transactions rapidly without becoming stuck or becoming too expensive. Here are a few examples of L1s. Bitcoin is the first L1, and it is the first one of its kind. It's made to keep assets safe and keep their value, but it's a little slower than modern chains. After that, Ethereum is the best-known L1 for smart contracts. It was the platform that let developers make apps (dApps) and NFTs right on top of its base code. Then there's Solana, which has a new technical architecture that lets it do thousands of transactions per second at a very low cost, yet at a very high speed. Other popular ones include Cardano, Avalanche, or newer ones like Sui—each tweaking the recipe to solve speed or cost issues while staying as the base layer.
- Layer 2 Layer 2 denotes a group of technologies atop an established blockchain, referred to as Layer 1, that increase scalability, decrease costs, and attract more users. Rather than executing every transaction directly on the primary blockchain, Layer 2 solutions transfer a large part of the activity to a secondary chain, which, however, still relies on the primary chain for its security and final settlement. Ethereum and other similar blockchains are highly secure and fully decentralized, but they may become slow and costly during the times of heavy usage. The introduction of Layer 2 technology was to address such concerns. By processing transactions only up to the point of giving a little summary to the main chain, Layer 2 mechanisms greatly diminish the congestion and, consequently, the costs of transaction fees. The most popular Layer 2 solutions are rollups (Optimistic Rollups and ZK-Rollups, for instance), payment channels, and sidechain-like systems. These technologies enable users to perform trading, send money, or use services of applications at a much faster rate than if on Layer 1 alone. It should be noted that Layer 2 is not a replacement for the primary blockchain, but it coexists with it and relies on the latter as the ultimate authority. Thus, transactions are made safe, and at the same time the effectiveness is increased. To put it simply, Layer 2 is the scaling layer for blockchains that can facilitate their growth. It turns crypto into a cheaper and quicker way of using money and thereby brings decentralized networks' everyday adoption closer to the real world.
- Leverage For cryptocurrency trading, leverage has the same meaning as in traditional finance. It means borrowing money so you can trade with more than you have. Leveraging lets you take on bigger positions and make more money, but it also raises your risk. For instance, you have $1,000, and you leverage 10 times this amount. If the price goes up by 10%, you will now have $2,000. But if it drops by 10%, you could lose everything you have. This is the double-edged sword of leverage: it can increase the possible returns, but it can also lead to big losses. Some crypto exchanges only let you borrow a little bit of money, like 2x, while others let you borrow a lot, like 100x or more. Because of this, traders who have been doing this for a while are careful when they use leverage. On the other hand, beginners often use a lot of leverage to make quick profits, but they also end up losing money quickly. There is also a funding fee when an investor trades leveraged crypto contracts. This is a small amount of money that long and short traders give each other to keep the contract price close to the real market price. If you hold a leveraged position for a few hours, you may have to pay or receive a funding fee, depending on what the market conditions are. It may seem minor, but over time, these fees can add up — especially if you keep leveraged positions open for long periods. Leverage isn't always a good or bad thing. It's a tool. If you use it wisely, it can make a good plan even better. If you use it carelessly, it turns into gambling with your account.
- LFG In the world of cryptocurrency, LFG is a popular acronym that stands for Let's F**king Go. A more polite and family-friendly version, is Let's Freaking Go. The term is popular within gaming and internet lingo, but in crypto, it carries a more positive vibe of high energy. Since then, it’s become the ultimate war cry for crypto fans looking to share some hype. https://twitter.com/Arlo_the_Intern/status/2019533091359059993 It is mostly used as a hype chant by traders, investors, and community members when they want to create buzz around a project, token, or market event. This is the shortest and simplest way to express intense enthusiasm, bullish energy, and a strong sense of unity within a community. You are most likely to see it used in the following scenarios: During market pumps, a specific coin or the entire market sees a sudden, sharp increase in price. You can also see people use it when making a major announcement, such as a partnership or an exchange listing, or when a new NFT collection is about to be minted. People use it to boost morale, whether the markets reach a significant milestone or weather a challenging period. It acts as a digital "cheer" to keep spirits high. And because the market operates 24/7, communities often form tight-knit groups on platforms like X, Discord, and Telegram. Using LFG is a way to show that you are "in the trenches" with everyone else.
- Lightning Network The Lightning Network serves as a secondary payment system which operates above the Bitcoin blockchain. The system achieves its goal of enhancing Bitcoin transaction efficiency by conducting most of its activities outside the main blockchain while preserving Bitcoin security protocols. The basic Bitcoin network processes transactions by assembling them into blocks which get added to the system approximately every ten minutes. The system experiences slower transaction confirmations together with increased transaction costs during times of high user activity. The Lightning Network solves this problem by enabling users to create direct payment links. Two people need to establish a payment link by locking up their Bitcoin in a common wallet which gets documented on the main blockchain. The two parties use the active channel to make unlimited instant payments with minimal expenses. The network does not receive these transactions because their complete details are not shared. The blockchain system tracks only the opening and closing account balances which create new records. The system experiences reduced congestion and lower costs because fewer transactions need to compete for available block space. The Lightning Network enables users to send routed payments without needing direct payment channels to their payment recipients. The system enables payments to be processed through multiple linked channels which create payment routes between the sender and the receiver. The system enables expanded operational capacity through its ability to handle more than just two-person interactions. The Lightning Network enables users to conduct their small transactions which include tipping retail purchases and micro payments. The system enables users to transfer Bitcoin using the smallest Bitcoin unit which is known as satoshis. The Lightning Network appears in crypto reporting as a solution for both Bitcoin scalability challenges and the need for real world Bitcoin adoption.
- Limit order Investors use limit orders to buy or sell cryptocurrency at their chosen price or any better price. A limit order requires a market to reach its designated price before the trader will receive their order. The system provides users control over their trades but does not protect against trade execution failures. A trader establishes their highest acceptable purchase price through a limit buy order. The order will only be executed if sellers are willing to sell at that price or lower. A limit sell order requires traders to establish their minimum acceptable price which becomes active when buyers agree to that price or a higher amount. The order remains active on the exchange's order book until all required conditions have been fulfilled. Traders who seek to execute their trades with maximum accuracy while maintaining operational speed use limit orders. The system protects traders from executing trades at undesirable prices because volatile markets experience sudden price fluctuations whichresult in unexpected execution. Long term investors use limit orders to establish their market positions because they want to avoid market monitoring. The primary danger associated with limit orders lies in their potential to remain unfulfilled. The order will stay unfulfilled when market conditions move beyond the set price limits. During rapid price movements which occur during market rallies or sell offs, traders will miss market access because prices will completely bypass their limit orders. Limit orders in crypto reporting serve as essential elements which help analysts understand trading patterns and market infrastructure. Open limit orders establish market price levels because they create visible supply and demand, which supports trading activities at exchanges. The operation of limit orders provides readers with essential knowledge to understand how crypto markets establish prices and execute trades.
- Liquidation Liquidation is the crypto market’s version of hitting the panic button on your trade. Exchanges use this as a safety net to make sure they don't lose money when a trader makes a bad bet. In the world of crypto, many people use leverage, which is essentially borrowing extra cash from an exchange, to buy more than they can afford. However, leverage is a double-edged sword. Say you have $100 but want to trade with $1,000 in Bitcoin, the exchange lends you the extra $900. The result is 10x leverage. Now, it's great if the price goes up, but it’s incredibly dangerous if the price drops. In case prices drop, the exchange won’t just sit by and watch its borrowed money vanish. Instead, they will liquidate you and take your pledged collateral to cover the debt. Here’s how this works. In a positive scenario, Bitcoin goes up 10%. Your $1,000 becomes $1,100. You sell, pay back the $900, and keep the remaining $200. You just doubled your money! But on the flipside, Bitcoin drops by 10%. Your $1,000 position is now only worth $900. Since that $900 belongs to the exchange, your original $100 cushion is gone. To protect themselves, the exchange triggers a liquidation. They instantly sell your Bitcoin to get their $900 back. You are left with $0. In crypto, prices can swing 10% in minutes. If you’re overleveraged, a tiny dip can result in your entire investment being wiped out instantly.
- LiquidityLiquidity refers to how easy and quick it is to buy or sell an asset in the market without changing its price too much. When it comes to regular finance, cash is the most liquid asset because you can use it right away. In traditional finance, millions of shares of blue-chip stocks are bought and sold on the market. This makes it easy for a seller to sell the stock for a price that is close to what it is worth on the market right now. This results in the stock having high liquidity. Real estate, on the other hand, is not liquid because it's hard to sell right away, and the price can change depending on other factors. In cryptocurrency, liquidity works the same way, but it is important to track it because of the high volatility. Coins with high liquidity, like Bitcoin and Ethereum, are traded in large amounts on exchanges. This makes it easy to buy or sell a lot of things with little change in price. But this isn't true for smaller altcoins, which are less liquid because there aren't as many buyers and sellers. So, if someone buys or sells a lot of an altcoin, any large trade in an altcoin could cause the price to swing wildly. A good amount of liquidity makes trading safer. In DeFi, liquidity pools enable individuals to deposit their assets, facilitating easier trading for others, while also allowing them to earn rewards in return. Â
- Liquidity Pool A liquidity pool is a digital pot of cryptocurrency locked inside an automated computer program, built to let people trade coins on the spot—no bank, no broker, no third party taking a cut or slowing things down. What fills these pools isn't institutional money, but regular people. Known as liquidity providers, they deposit matching values of two tokens and, in return, collect a share of the fees every time someone trades through that pool. Busier pools generate more fees, and more fees mean better returns for those who funded them. In traditional finance, buying or selling anything requires another person on the opposite end of the deal—someone willing to sell what is being bought or buy what is being sold. If no match exists, the trade simply doesn't happen. Liquidity pools remove that dependency altogether. Liquidity providers deposit two cryptocurrencies together into a shared pot, say Bitcoin and USDT. That pool then sits open for anyone who wants to swap one for the other. A trader holding Bitcoin who wants USDT simply trades against that pool directly, not against another person. The funds are always there, which means trades go through immediately, at any hour, without waiting for a willing counterpart to show up. No human being sits behind the scenes adjusting prices. That job belongs to an algorithm—an Automated Market Maker, commonly shortened to AMM. A mathematical formula tracks the ratio of coins inside the pool at any given moment and moves the price accordingly. If a coin gets sold a lot, the price climbs. Simple cause and effect, handled entirely by code. Contributing to a liquidity pool is not without its hazards. If the price of a deposited token moves significantly while funds sit inside the pool, a provider can end up withdrawing less value than they originally put in. The industry labels this impermanent loss, though for many caught on the wrong side of a price swing, the damage is anything but temporary. Liquidity pools now sit at the core of decentralized finance. Platforms like Uniswap run billions in daily trades through them—no staff, no office, no gatekeeper deciding who gets access and who doesn't.
- Long Position A long position is the strategy of trading, in which the investor buys an asset, for example, a cryptocurrency, stock, or commodity, with the assumption that its price will increase over time. By going "long," one is putting his/her/their money up. If the price goes up, then he/she/they can sell the asset later on at a higher price and make a profit equal to the difference. In the world of cryptocurrencies, taking a long position can be as easy as just buying Bitcoin or Ethereum and keeping it in a wallet. Traders who are thinking of a strong price increase and generally a bullish market might even open long positions via futures contracts or margin accounts that give them access to leverage. Using leverage means that the trader can get more profit if the market goes in his/her/their favor, however, the risk of losses would also be increased if the prices go down. Going long does not necessarily mean that the trader has to keep the asset for a long time, it just refers to the direction of the bet. The long position could last for minutes, hours, months, or even years depending on the trader’s style and the level of his/her/their confidence in the trend. Long positions are generally taken during bull markets when the investors’ sentiment is positive and thus they think that the prices will continue to rise. To put it simply, going long means that you expect the market to be bullish and you are taking steps to reap the benefits of that increase.