DeFi Glossary & Terminology

The app that holds your private keys and signs transactions for you. It does not hold your coins - the coins live on-chain - so the real asset is the key, and whoever holds the key controls the wallet.

Your public identifier on-chain, like an email address people can send tokens to. Anyone can see it; that is fine. It is paired with a private key that only you should hold.

The safe half of your key pair - the part that generates your address and can be shared freely. It proves things about your private key without ever revealing it.

The secret half of your key pair. Whoever holds it controls the wallet, so it is the one thing you never share, paste, or screenshot.

Twelve or twenty-four words that can regenerate every private key in your wallet. It is the master backup: lose it and you lose the wallet, leak it and someone else owns it.

A cryptographic proof that you approved a specific transaction, produced with your private key. It lets the network verify the approval without ever seeing the key itself.

An instruction sent to the blockchain - send tokens, swap, call a program - bundled, signed, and recorded permanently once confirmed.

The small fee, paid in the chain's native coin (SOL on Solana), that validators collect to process your transaction. It is the price of getting included.

A small SOL deposit Solana requires to keep data stored in an on-chain account. You generally get most of it back when the account is closed.

A public website for reading the blockchain - search any transaction, account, or token and see exactly what happened. Solscan is the one most people use for Solana.

A digital asset issued on top of a blockchain. On Solana these follow the SPL standard, and anyone can create one - which is exactly why checking the real mint matters.

The Solana standard that defines every fungible and non-fungible token on the chain. Same rules for all of them, so wallets and tools can handle any token the same way.

The unique cryptographic identifier for a token or program. On Solana, a token's CA is its Mint Address, the immutable public key that defines the token, allows you to import it into your wallet, and protects you from identically-named fake tokens.

In crypto, the Contract Address (or Mint Address on Solana) is the exact on-chain public key of the token. Pasting the CA into Phantom, Solflare, or DexScreener ensures you are viewing and trading the authentic token rather than an impersonator.

The on-chain account that defines a token: its decimals and total supply. Everything about 'which token is this' traces back to its mint address.

A separate account that holds your balance for one specific token. You do not have one giant balance - you have one token account per token you hold.

How many places a token can be divided into. SOL has 9 decimals and USDC has 6, which is why '1 USDC' is stored as 1,000,000 base units on-chain.

The tokens unlocked and actually tradable right now. It is the number behind market cap, and it grows every time a vesting unlock or emission releases more.

Every token that exists at this moment - locked, vested, and circulating alike. It shrinks only when tokens are burned.

The hard cap on how many tokens will ever exist. If there is no cap and the mint authority is still live, supply can be inflated at will.

Price times circulating supply - the market's rough price tag on the float. It is not what the project is worth, and it says nothing about how much token is still locked.

Fully diluted valuation: price times max (or total) supply, as if every locked token were already tradable. When FDV towers over market cap, future unlocks are a looming overhang.

The share of total supply that is actually circulating. A low float means little is trading today - and a lot is waiting to be unlocked.

Total Value Locked - the dollar value sitting inside a protocol or pool. It measures size and tells attackers how big the prize is; it does not measure safety.

Trading one token for another directly, usually against a pool rather than a counterparty. On Solana, Jupiter routes a swap across many venues to find the best price.

The price and output a venue shows you before you confirm a trade. Always read the quote - the executed price can differ once slippage and fees land.

The difference between the price you expected and the price you actually got. Your tolerance is the ceiling you accept - set it too wide and you invite sandwich attacks.

How much your own order moves the pool's price. It grows with your size relative to the pool's liquidity - the reason big trades get worse fills.

A robot shopkeeper. A smart contract that lets anyone trade two tokens instantly against a pool of assets, always using one fixed math formula (x * y = k) instead of human negotiation. It never runs out of stock, never takes a break, and its price simply reacts to how much of each token sits in the pool.

A shared pile of two or more tokens locked inside a smart contract that traders swap against. Think of it as a community piggy bank: anyone can deposit in, anyone can trade out, and every swap pays a small fee into the pile.

A receipt token given to liquidity providers representing their share of a pool. It is not a salary and it is not a loan - it is a redeemable claim. As trading fees pile up inside the pool's vault, each LP token quietly becomes redeemable for more of the underlying tokens. Burn it to exit the pool and collect your share.

The yearly return on deposited assets, without compounding. It is the simpler headline number - the one that flatters a yield before reinvestment is counted.

The yearly return including compounding, so it is always at least as high as APR. The bigger the gap between APY and APR, the more often the yield is being reinvested.

The gap between holding tokens in a pool versus simply holding them in your wallet. It appears whenever the two tokens' prices diverge, and it becomes permanent the moment you withdraw.

A token designed to hold a steady value, usually $1. Backing varies wildly - real reserves (USDC), over-collateralized crypto (DAI), or algorithms and hope (UST). The peg is only as strong as the backing behind it.

The target price a stablecoin tries to hold, normally $1. It holds only as long as people believe they can redeem for the real thing.

When a stablecoin slips away from its target price. A small wobble is noise; a sustained break usually means the market has lost faith in the backing.

The assets you lock as security for a loan. If you fail to repay or the value falls too far, the protocol seizes them - that is the lender's protection.

Loan-to-Value: the maximum you can borrow against your collateral, set by the protocol. A 75% LTV on $100 of collateral means at most $75 of debt, leaving a cushion before liquidation.

A live safety score for your loan. Above 1.0 you are fine; at or below 1.0 the protocol liquidates you. It falls as your collateral loses value or your debt grows.

The automatic sale of your collateral to repay a too-risky loan. It is not a punishment - it is the mechanism that keeps a lending protocol solvent.

The share of a lending pool that is currently borrowed. High utilisation means most funds are out on loan, which pushes interest rates up until borrowers repay or new deposits arrive.

Locking tokens to help secure a proof-of-stake network in return for rewards. On Solana you usually delegate to a validator; the tokens stay yours but are illiquid until you unstake.

A node that proposes and votes on blocks to keep the chain running. Delegating to a reliable, low-commission validator is how stakers keep their rewards intact.

Staking through a protocol that hands you a tradable receipt (like mSOL or JitoSOL) for your deposit. You keep earning rewards while the receipt stays usable in DeFi - at the cost of taking on the protocol's own risk.

The schedule that releases locked team and investor tokens over time. It exists to stop insiders dumping on day one - and its calendar is where future sell pressure is written.

A waiting period before any of a locked allocation unlocks. After the cliff, the first big chunk releases at once, which is often the heaviest sell-pressure day.

The release of previously locked tokens into circulation. Unlocks expand supply and add sell pressure, so a heavy calendar is a real headwind, not background noise.

New tokens minted and handed out over time to reward users, LPs, or stakers. They bootstrap activity but dilute holders - and when they stop, mercenary liquidity often leaves with them.

Permanently destroying tokens by sending them to an address no one can spend from. Burning cuts supply; whether that lifts the price depends on demand actually existing.

Free tokens distributed to wallets, usually to reward early users or seed a community. Often a marketing tool, and increasingly a target for sybil farming.

The voting system where token holders decide protocol changes and spending. It only means control if the votes are not quietly dominated by insiders and whales.

Decentralized Autonomous Organization - a group run by code and token-holder votes instead of a company. The autonomy is real; so is the risk that a few large holders control the vote.

The service that feeds outside data - most importantly prices - onto the blockchain. A protocol is only as safe as its oracle, because a manipulable price can be made to lie.

Time-Weighted Average Price: a price averaged over a window instead of one instant. Averaging makes a one-block spike nearly worthless, which is what shuts down most oracle manipulation.

An uncollateralized loan that must be borrowed and repaid within the same transaction. It is not free money and not a hack - it is a tool that scales whatever weakness a protocol already has.

Maximal Extractable Value - profit made purely from choosing the order transactions execute in. Arbitrage is the benign kind; sandwiching your trade is the hostile kind.

A bot that buys right before your swap and sells right after, pocketing the price move your own order caused. Tight slippage tolerance is what starves it.

An optional tip added to a transaction to jump the queue when the network is busy. It buys inclusion speed, not safety.

A live list of resting buy orders (bids) and sell orders (asks) at each price level. It shows exactly where liquidity sits - unlike an AMM, which hides it inside a formula.

The bid is the highest price a buyer will pay; the ask is the lowest a seller will accept. The gap between them is the spread.

The gap between the best bid and the best ask. You pay it on the way in and again on the way out - a guaranteed round-trip cost even if the price never moves.

An order to trade immediately at whatever the market offers. It always fills, but in a thin market the average price can land far from the one you saw.

An order to trade only at your chosen price or better. It might never fill, but you never pay worse than you asked - and by resting in the book, you often earn the cheaper maker fee.

An order that waits for a trigger price, then exits. It guarantees an attempt to get out, not the price you get out at - in a fast move it can slip badly.

A derivative that tracks an asset's price and never expires. With no expiry, a funding rate is what keeps it glued to spot.

Using borrowed money to control a bigger position than your capital alone. It multiplies gains and losses equally - and it decides how much ordinary noise you can survive before liquidation.

The collateral you post to open a leveraged position. It is the buffer the venue seizes when the trade goes against you - the smaller it is, the closer liquidation sits.

The periodic payment between longs and shorts that tethers a perpetual to spot. Positive funding means the crowd is long and the longs are paying to stay long.

The fair-price benchmark used for PnL and liquidations, blended from the perp and a spot index and smoothed. It is deliberately not the last traded price, so a one-second spike cannot liquidate everyone.

A protocol that moves value between chains by locking it on one and minting a claim on the other. Bridges hold huge value behind a few privileged functions, which is why they are the most-hacked category in crypto.

A formula that sets a token's price from its supply alone. Buying walks the price up the curve, selling walks it back down - the mechanism behind fair-launch memecoins.

A malicious exit where the creators drain the liquidity or dump their bag, leaving everyone else with worthless tokens. The whole downside lands in one transaction.

A contract built so you can buy but not sell - selling is blocked or taxed to near zero. It looks tradable right up until you try to exit.

A security review by trained engineers hunting for known bug classes. It is a snapshot of one code version, not a guarantee - the code and the keys can change the day after.

The key allowed to rewrite a contract's code later. If a single wallet holds it with no timelock, the audited code you trusted can be swapped for a malicious version in one transaction.

The wallet allowed to create new units of a token - the 'printing press'. If it is not revoked, the holder can mint unlimited supply and dump it on buyers.

The wallet allowed to freeze token accounts, blocking holders from selling or transferring. An active freeze authority is a major red flag on a new token.

Deciding how much of your capital to risk on a single trade. It is the one variable fully in your control, and it matters more than any prediction - size too big and one bad streak ends the game.

The wild, fast-paced world of micro-cap on-chain trading (Raydium, Pump.fun) where tokens launch every minute, snipers battle bots, and fortunes are won or lost in seconds.

A friendly reminder to close DEXScreener and Twitter, step outside, and reconnect with reality after staring at 1-second candles and losing your sleep.

The ultimate crypto meme asking when an investment will pump enough to buy a Lamborghini. Often said ironically by traders down 95% on a dog token.

Phonetic for 'wrecked'. Refers to suffering devastating financial wipeout from a bad trade, leverage liquidation, or sudden rug pull.

Suffering severe portfolio drawdowns, feeling exhausted and broke after a brutal market correction or liquidated position.

An elite, disciplined on-chain trader who sticks to risk management, buys fear, sells euphoria, and prints profits without emotional meltdown.

Slang for an impatient trader who dumps their tokens for a measly 5% profit or panic-sells at the first red candle, killing momentum for everyone else.

Unwavering conviction to hold an asset through extreme 80% market drops without panicking, waiting for the long-term thesis to play out.

Weak resolve; panicking and dumping tokens the moment price dips 10%, locking in losses right before the reversal.

Short for anonymous. The universal term of endearment on Crypto Twitter for fellow on-chain market participants.

High-value, early analytical insights or insider research that gives a trader an asymmetric edge over the broader public.

Buying heavily into a freshly launched token within seconds without reading the code, tokenomics, or doing basic due diligence.

Spreading negative rumors or exaggerated concerns to scare people into panic-selling so insiders can buy tokens cheaper.

The psychological urge to buy a token at the very top after watching it pump 500%, driven by fear of being left behind.

Humorous slang indicating that someone's poor risk habits, bad security practices, or emotional trading will lead to getting rekt.

An optimistic crypto mantra celebrating camaraderie, collective success, and resilience through brutal market cycles.

A token on one chain that represents a token locked on another chain, usually minted 1:1 by a bridge. It is only as valuable as the bridge's locked reserves.

The percentage drop from a portfolio's peak value to its current value. Large drawdowns require ever-larger gains to recover, which is why managing them matters more than maximizing wins.

A smart-contract vulnerability where a contract calls out to another before finishing its own state update, letting the callee re-enter and drain funds. Fixed by updating state before external calls.

The loose community of traders, builders, and shills on Twitter/X where crypto narratives, launches, and slang originate. If something is trending loudly on CT, you are usually late to it.

Good morning - the ritual greeting that opens every Crypto Twitter timeline. Posting it daily is a way to stay visible; it means almost nothing else.

A mock-courteous form of sir, used sarcastically or sincerely between degens. Often precedes a condescending correction or a badly disguised shill.

Friend, in degen spelling. Frequently applied to people who are actively dumping on you - a warning to judge wallets, not vibes.

Short for degenerate - a trader who chases high-risk plays for the thrill. Used with pride and as a caution, since degeneracy is how most accounts reach zero.

Praise for an opinion or move that is unfashionably correct or admirably bold. The opposite of a capitulation take.

Hold On for Dear Life - refusing to sell through volatility. A typo of hold that became a badge of conviction; it only works on assets that survive the drawdown.

Let's Freaking Go - pure hype punctuation. It signals momentum and is loudest right before the local top.

Fabricated comfort a holder inhales to justify a losing position. Recognizing copium in yourself is the first step to cutting a bad trade.

Optimism without evidence - the fuel behind buying a chart on a story alone. It is the gentle cousin of copium.

Promoting a token, usually while holding it, to drive others in and lift the price. Follow the wallet: a shiller who is already up is looking for exit liquidity.

The buyers who arrive last; their money is the profit the earlier holders take. If a pitch needs you to buy to make someone else whole, you are the exit liquidity.

A wallet large enough to move a market on its own. Whales can create a trend, and their exits can crush it.

A long-odds bet with an enormous upside if it works. Fine as a small, sized position; ruinous when it becomes the whole portfolio.

The moment one asset's market cap overtakes another's (classically ETH overtaking BTC). The term now describes any major narrative power shift.

Your holdings in a token - often used ruefully (holding heavy bags). A bag you cannot exit at a fair price is a liability, not an asset.

When a token's original dev abandons it and the community keeps it alive. It can signal real grassroots conviction - or just a new set of people looking for exit liquidity.

Buying in the very first seconds of a launch, often via bots. Snipers front-run retail and their dump is a major source of early price collapse.

The (usually anonymous) deployer of a token. Whether the dev holds, sells, or rugs is central to memecoin risk - check the deployer's other launches.

Suspected group of connected insiders quietly accumulating, coordinating, and exiting together. Sometimes real, sometimes paranoid - always worth checking wallet clusters.

Your realized or unrealized gains and losses. This is the line that actually matters; screenshots of wins mean nothing without the losses beside them.