A dictionary that reads like an essay
Crypto Exchange Glossary: Spread, AML, Custody, Watch-Only and Other Words That Move Your Money
SwapNest takes the vocabulary of the USDT-for-fiat market and unpacks it properly. Every entry gets two treatments: a one-sentence definition you can quote, and a long read that shows where the term bites in a real deal. Terms are grouped into three shelves — market, security and custody — so a word is never met in isolation.
- Term shelves
- 3 Term shelves
- Terms unpacked
- 15+ Terms unpacked
- Long reads
- 2 Long reads
- Languages
- 4 Languages
Glossary shelves
Market, security and custody terms — each one defined in a sentence you can quote, then unpacked.
Market terms: spread, mid-market rate, peg, liquidity, slippage
Five words that decide how much of your money survives an exchange. Each entry gives a one-sentence definition and a long read about where the term shows its teeth: the moment a quote appears, and the moment it quietly changes.
Learn moreSecurity terms: AML, KYC, risk scoring, frozen addresses
The vocabulary of money’s immune system. These are not laws you feel directly — they are procedures applied to you invisibly, and reading them in advance is the difference between a routine exchange and an unexpected rejection.
Learn moreCustody terms: hot and cold wallets, watch-only, seed phrases
Custody is the oldest question in money wearing new clothes: who can actually move the funds? Five entries that turn marketing phrases like “your coins are safe with us” into a question with a checkable answer.
Learn moreWhy SwapNest
Two depths per term
A definition you can repeat to a friend in one breath, and an essay underneath for the moment you actually need the term to work for you — not against you. Short for skimming, long for deciding.
Shelves, not alphabet soup
Market words, security words, custody words. When terms sit next to their relatives, the logic of the whole market becomes visible — spread makes sense next to liquidity, and watch-only makes sense next to seed.
Built to age slowly
We describe mechanisms, not today’s numbers. Rates, limits and enforcement habits change constantly; the anatomy of a spread or the meaning of custody changes at the pace of the industry itself. Facts are hedged and mechanisms are not.
Written for verification
Where a claim can be checked in a block explorer or an exchange interface, we say how. Where it is a matter of local practice, we say that too — plainly, without dressing habits up as laws.
Start with the shelf that matches your worry
Confused by pricing? Open the market shelf. Worried why an address can be “dirty”? The security shelf. Unsure who actually holds your coins? Custody. The glossary is organised the way questions arrive, not the way textbooks are printed.
Read the one-liner, then decide
Each entry opens with a single-sentence definition. If that is enough for today, stop there. If a term is about to cost you money — a fee, a freeze, a rejected transfer — continue into the long form before you act.
Cross-check the living language
Glossaries age and markets invent slang faster than dictionaries. When you meet a word in the wild, confirm its current use in a practical write-up — for example, on [UsdtChange, a knowledge base about USDT exchange](https://usdtchange.top) — before relying on it for a decision.
Revisit before big decisions
Large amounts make old assumptions expensive. Before a significant move, re-read the entries on risk scoring and custody: enforcement practice around them shifts more often than the terminology itself does.
Long reads
Essays that connect the entries: where custody, risk scoring and verification meet a live deal.
AML explained: why your coins carry their past with them
To a risk system, money is never just money — it is a story about where it has been. This essay explains the machinery that reads that story, why two honest people get different treatment from the same desk, and what a user can actually control.
Who holds the keys: a long read on custody
Strip away the interfaces and every crypto arrangement reduces to a single question: who is able to move the funds, and under what circumstances? This essay walks the full spectrum of answers, from fully custodial services to steel plates buried in the ground, and shows what each answer costs.
Ready to deal?
A glossary is a map, not the road. The two handbooks we treat as the best starting points for live USDT work are below — both describe non-custodial flows with one-time addresses.