When you first enter crypto, what puts people off isn't the market — it's the language. A single simple sentence can pack in five or six words you've never seen: "buy some spot on a CEX first, withdraw over TRC20, and don't touch futures or you'll get liquidated" — you know every word, but strung together you've no idea what it means. This page is here to take that slang apart.
How to use it is simple: you don't read it top to bottom. While reading an article, when you hit a word you don't get, come back here, search it, and read the line or two of plain explanation. I keep it short and direct, and where something needs unpacking I link to the piece on this site that goes deeper. Terms are grouped by where you'll use them, so you can take what you need.
1. Trading
Spot
Paying money to buy the actual coin; once bought it's yours, hold it as long as you like. No leverage, no liquidation — the only form a beginner should touch. For the fundamental difference from futures, see spot vs futures.
Futures (incl. perpetual futures)
A leveraged derivative; what you buy isn't the coin but the direction — "will the price go up or down." Your stake is the margin, and if direction goes against you enough your position is force-closed. Why beginners should stay away, again see spot vs futures.
Leverage
Using a small margin stake to move a much larger position. It scales up your gains and scales up your losses by the same factor — at 10x, a roughly 10% move against you can wipe you out.
Long / Short
Long = betting the price rises, you profit if it does; short = betting it falls, you profit if it does. These two words appear mostly in futures.
Liquidation
When a futures loss keeps growing and nearly wipes out your margin, the platform — to stop you owing money — force-closes your position, and that margin is basically gone. Higher leverage means easier liquidation.
Margin
The stake you put up in a futures trade. It's the "deposit" on this leveraged position; losses are deducted from it, and when it's no longer enough to maintain, liquidation triggers.
2. Orders
Market order
Fills immediately at the best available market price. Upside: you buy right away. Cost: you can't control the exact fill price. For a beginner's first spot buy, a market order is the least fuss.
Limit order
You set a price you want filled at, and it only fills when the market reaches it. You control price and the fee may be lower, but it might sit unfilled for a long time.
Maker / Taker
A maker rests an order waiting for someone to fill it, providing liquidity to the market, usually with a lower fee; a taker directly takes someone's resting order for an immediate fill, usually with a slightly higher fee. This is one key to whether fees are high or low; details in how Binance fees actually work, with the standard definition in Investopedia.
Slippage
The gap between the price you saw and the actual fill price. When the market moves fast or depth is thin, market orders often fill a bit worse than you expected, and that gap is slippage.
Stop-loss / Take-profit
Set a price in advance, and when it's reached it auto-sells for you. A stop-loss cuts the position once losses hit a certain level so they don't widen; a take-profit banks gains once they hit a certain level.
Depth / Liquidity
Simply put, "how thick the buy/sell book is in this market." With good liquidity, even a large order won't skew the price much and slippage is small; with poor liquidity it's the opposite. Major coins on big platforms usually have better liquidity.
3. Wallets & security
Wallet
The tool that holds crypto. Note: holding coins is essentially holding "control" (the private key), and the wallet is the software or hardware used to manage that control.
Hot / Cold wallet
A hot wallet is online and convenient but exposed to network risk; a cold wallet is offline (e.g. a hardware wallet), more secure, suited to large amounts held long-term and untouched. In a line: hot for small daily use, cold for large long-term storage.
Private key
The string of keys that controls a wallet's assets. Whoever holds the private key owns what's inside. It must never be told to anyone, any support agent, any website — leaking it is handing your money away.
Seed phrase
A set of usually 12 or 24 words, another backup form of the private key, equivalent to the master key to a wallet. Be sure to write it down offline by hand, never photograph or upload it, never enter it into any sketchy site. Lose or leak the seed phrase and the assets may all be lost beyond recovery.
KYC (identity verification)
Know Your Customer: the platform asks you to upload an ID and pass a face check, confirming "you are who you say you are." Reputable exchanges now generally require completed KYC before you can fully deposit and withdraw. Where verification gets stuck and how to pass first try, see Binance verification failed — how to pass first try.
2FA (two-factor auth)
On login or withdrawal, besides the password you also enter a code that changes constantly. Prefer an authenticator app, don't rely on SMS alone. Binance's official notes are in the help center; how to set it up, see how to handle account security.
4. Chains & transfers
Chain / Network
A blockchain is the public ledger recording all transfers. Different coins run on different chains, and the "network" you pick on a transfer must match what the recipient supports, or it may not arrive. The traps around withdrawals and networks are covered most concretely in what USDT is.
TRC20 / ERC20
Versions of the same USDT on different chains: TRC20 runs on TRON, usually with lower fees and faster confirmation (TRON produces a block about every 3 seconds); ERC20 runs on Ethereum, usually with higher fees and slower confirmation (Ethereum produces a block about every 12 seconds). These two can't be mixed on a transfer; pick the wrong network and you may lose the coins. For Ethereum itself, see Ethereum's site.
Gas / miner fee
The fee paid to the network to make a transfer on a blockchain, paid to the nodes maintaining the chain. Usually pricier when the network is congested, especially on Ethereum. This isn't the same thing as the trading fee an exchange charges.
Address
A "deposit account number" made of letters and numbers; people send coins to this address. Check the address digit by digit before transferring — on-chain transfers can't be reversed once sent, and a wrong address is extremely hard to recover.
TxID / transaction hash
Every on-chain transfer has a unique ID, the TxID. Take it to a block explorer (e.g. TRON's TRONSCAN, Ethereum's Etherscan) and you can see whether the transfer arrived and where it's stuck. When arrival is in doubt, this is the hardest piece of evidence.
Confirmations
The number of times a transfer has been written into a block and then stacked over by later blocks. More confirmations, more irreversible and secure. Bitcoin produces a block about every 10 minutes, so its transfer confirmations are usually slower than TRON's or Ethereum's.
5. Coins & markets
Stablecoin
A crypto pegged to some fiat currency, like USD-pegged USDT and USDC, designed so one coin roughly equals one dollar. It's the "digital cash" for deposits, pricing and a safe-haven stopover, but isn't risk-free; for more see what USDT is, and for the concept Investopedia.
Bitcoin / Ethereum (BTC / ETH)
The two largest coins by market cap. Bitcoin has a fixed total supply of 21 million (set in its protocol) and is often called "digital gold"; Ethereum is a public chain underpinning a huge number of applications, with many tokens and DeFi running on it.
Market cap
An estimate of a coin's total value, roughly "current price × circulating supply." Market cap broadly reflects a coin's size; you can't judge by unit price alone — a low unit price doesn't mean cheap, look at market cap and circulating supply.
Circulating supply
The number of coins actually circulating in the market now. It can differ from "total supply" or "max supply" — some coins still have large unreleased portions — so don't judge a coin by price alone, look at the supply structure too.
Halving
Mainly for Bitcoin: by protocol, about every four years the reward for mining new bitcoin is cut in half, slowing the rate of new issuance. It's a mechanism written into Bitcoin's rules, often discussed by the market as a supply change.
Altcoin / major coin
Coins other than Bitcoin are collectively "altcoins." Among them the large, strong-consensus ones are often called "major coins," while the many small ones carry higher risk and bigger swings — beginners should be especially careful and not be lured by big percentage gains.
Going to zero
When a coin's price falls to nearly worthless. Small coins and troubled projects can go to zero — a real risk in crypto — so don't put all your money on some coin you don't understand.
6. Mechanics & ecosystem
CEX / DEX
A CEX is a centralized exchange — platforms like Binance and OKX, company-run and requiring KYC — where beginners usually start; a DEX is a decentralized exchange, trading directly on-chain with your wallet, with no middle institution, more freedom but also more friction and risk. Each has trade-offs; beginners should get the basics smooth on a CEX first.
DeFi (decentralized finance)
Financial apps running on a blockchain — lending, swapping, earning — without traditional banks or institutions, all executed automatically by smart contracts. The opportunities and risks are both sizeable; contract bugs and rug-pull projects exist, so beginners shouldn't rush in.
Staking
Locking coins for a period to take part in network maintenance or platform activities in exchange for some yield. It sounds like "deposit and earn interest," but the yield isn't guaranteed and there can be lock-up and price-swing risks, so don't dive in on the annual-rate number alone.
Airdrop
A project gives tokens free (or low-barrier) to users who qualify. Real airdrops exist, but scammers love using "claim an airdrop" as bait — any "airdrop" that asks you to connect your wallet and approve, or to enter your private key or seed phrase, is almost always a scam.
Whitepaper
A document where a crypto project describes what it'll do, how, and how tokens are distributed. It's one starting point for judging whether a project is solid, but be wary of ones that only paint grand pictures without explaining how they'll get there.
Smart contract
A program deployed on a blockchain that automatically executes agreed rules. DeFi, airdrops and many tokens rely on it. Its upside is being automatic and public; its risk is that once the code has a bug, assets can be exploited.
7. Mindset slang
FOMO (fear of missing out)
Seeing everyone else make money and dreading you'll miss out, so you chase in impulsively at a high. It's a high-frequency loss-making mindset for beginners; the crazier the market, the more to watch for these words.
All in
Putting your entire stake in at once. It sounds bold, but it actually piles all your risk on a single judgment, with no room to maneuver once you're wrong. Especially to be avoided by beginners.
Buying the dip / catching the bag
Buying the dip means trying to buy at a low; catching the bag means buying high what someone else is selling. The catch: the bottom is only clear in hindsight, and many who think they're buying the dip are really catching the bag halfway down. Don't put faith in "catching the exact bottom."
Stuck / breaking even
Buying and then the price falls below your cost — selling hurts, holding is uncomfortable — that's being stuck; waiting until the price climbs back above cost so you can exit without a loss is breaking even. Controlling position size and setting stop-losses is precisely to get stuck less often.
Retail "leek" / harvesting
"Leek" is often used self-deprecatingly or to describe inexperienced retail traders who are easily harvested; "harvesting" is when someone uses an information or operational edge to take their money. Raising this term isn't to look down on anyone — it's a reminder: don't hand over your money before you understand what you're doing.
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Putting this page to work
This page will fill out gradually as beginners keep bumping into new words. If after reading a term you want to go deeper, just follow the link in the entry to the relevant detailed piece. In the foundations stage, I'd suggest going through the full first-time Binance flow and how Binance fees actually work first — most of the terms you'll then be able to match up while actually operating.
One-line usage: hit an unfamiliar word in an article, come back here and read the line or two on it; the terms that really matter (spot/futures, private key/seed phrase, network, slippage/stop-loss) read twice, look up the rest as you need them. Nobody's born understanding the slang — you just look it up until it's familiar.