# Professional Terms in the Crypto

## **I. Market and Trading Terms**

1. **Bull Market**
   * Refers to a market trend with sustained price increases, where investors are optimistic and eager to buy.
   * *Example: In 2021, BTC rose from $30,000 to $69,000, known as a "super bull market".*
2. **Bear Market**
   * A market with continuous price declines, where investors are generally pessimistic and dominated by selling.
   * *Characteristics: Major coins drop by over 50%, and altcoins widely go to zero.*
3. **Consolidation**
   * Prices fluctuate within a narrow range with no obvious upward or downward trend, also called "sideways trading".
4. **Pullback**
   * A short-term price decline during an uptrend, typically a technical correction.
   * *Example: ETH rose from $4,000 to $4,800 then fell back to $4,400, which is a normal pullback.*
5. **Rebound**
   * A short-term price increase during a downtrend, possibly a technical recovery from oversold conditions.

## **II. Investment and Operational Strategies**

1. **Bottom Fishing**
   * Buying at low prices in the hope of profiting from a subsequent rebound, with the risk that "the bottom may have another bottom".
2. **Top Escape**
   * Selling at high prices to avoid losses from a subsequent decline, with the challenge of identifying the true "top".
3. **Stop Loss**
   * Forced selling at a loss, also known as "cutting losses", used to control further declines.
4. **All-In**
   * Investing all funds into a single cryptocurrency, a high-risk move common among aggressive investors.
5. **Dollar-Cost Averaging (DCA)**
   * Regularly buying cryptocurrencies in fixed amounts to reduce the impact of short-term price fluctuations, suitable for long-term investment.

## **III. Token and Project Types**

1. **Major Coins**
   * Cryptocurrencies with high market cap and strong consensus, such as BTC, ETH, SOL, etc., with relatively strong risk resistance.
2. **Altcoins**
   * All cryptocurrencies except BTC, carrying high risks, with some projects having no real value.
3. **Air Coins**
   * Tokens with no technical backing or real-world use cases, relying solely on hype—most eventually lose all value.
4. **Exchange Tokens**
   * Tokens issued by exchanges, such as BNB, OKX, typically tied to platform ecosystems (e.g., trading fee deductions, dividends).
5. **Governance Tokens**
   * Tokens granting holders decision-making rights in projects, such as UNI, AAVE, allowing participation in community proposal voting.

## **IV. Technical and Mechanistic Terms**

1. **Blockchain**
   * A distributed ledger technology that ensures data immutability through cryptography, serving as the underlying technology for cryptocurrencies.
2. **Smart Contract**
   * An automatically executed code protocol requiring no third-party intermediaries, commonly seen on public chains like Ethereum and Solana.
3. **DeFi (Decentralized Finance)**
   * Blockchain-based financial services, such as lending (Aave) and decentralized exchanges (Uniswap).
4. **NFT (Non-Fungible Token)**
   * Unique digital assets, such as digital artworks or virtual land, representing specific rights.
5. **PoW (Proof of Work)**
   * One of the blockchain consensus mechanisms, where mining rights are competed for through computing power (e.g., BTC mining), with high energy consumption.
6. **PoS (Proof of Stake)**
   * Mining rights are allocated based on the quantity and duration of tokens held, with low energy consumption—ETH 2.0 has shifted to this mechanism.

## **V. Risk and Warning Terms**

1. **Go to Zero**
   * Token prices drop to near zero, causing investors to lose all capital, common in air coins or project runaways.
2. **Rug Pull**
   * Project teams suddenly withdraw liquidity pool funds, causing token prices to crash, a form of malicious fraud.
3. **FOMO (Fear of Missing Out)**
   * Blindly chasing price increases due to herd mentality, leading to buying at highs—a common investment mistake for retail investors.
4. **DDoS Attack (Distributed Denial of Service Attack)**
   * Hackers paralyze exchange or on-chain services through massive fake requests, making trading impossible.
5. **Pig Butchering Scam**
   * Groups induce users to invest in fake cryptocurrencies through social platforms, eventually reaping funds, similar to traditional financial fraud.

## **VI. Derivative and Emerging Concepts**

1. **Metaverse**
   * Virtual world ecosystems, with related tokens (e.g., MANA, SAND) representing virtual land or assets.
2. **GameFi (Game + Finance)**
   * Play-to-earn blockchain games, such as Axie Infinity, where players earn token rewards through gameplay.
3. **Layer2**
   * Expansion solutions based on main chains, used to improve transaction speed and reduce fees (e.g., Ethereum's Arbitrum).
4. **Cross-Chain**
   * Interoperability of assets between different blockchains, such as cross-chain transactions via Polkadot or Avalanche.

## **Term Comparison Table**

| Chinese Term | English Term    | Core Meaning                                                                                    |
| ------------ | --------------- | ----------------------------------------------------------------------------------------------- |
| 现货交易         | Spot Trading    | Direct token buying/selling, cash on delivery, no leverage.                                     |
| 合约交易         | Futures Trading | Leveraged trading, long/short positions, high risk (e.g., BTC perpetual futures).               |
| 流动性挖矿        | Yield Farming   | Earning rewards by providing token liquidity (e.g., adding LP tokens on Uniswap).               |
| 私募           | Private Sale    | Early-stage fundraising to institutions/individuals at prices far below public listing.         |
| 公募（IDO/ICO）  | Public Offering | Public fundraising for retail investors, common on decentralized exchanges (e.g., IDO via DAO). |

## **Warnings and Recommendations**

* Cryptocurrency terms often involve high-risk operations—newcomers should understand concepts before investing.
* Beware of scams packaged as "new concepts" (e.g., hyping air coins with "Metaverse" or "Web3").
* China prohibits speculative activities related to virtual currencies; comply with regulatory requirements and choose compliant investment channels.