When one learns a new subject, the first major stumblicg block is the nomenclature, those specialized words and terms that define a subject. And its worth, or maybe rather necessary to familiarize oneself with those terms. Here is a list of the most important ones:

Basic Cryptocurrency Terms

Cryptocurrency – digital money that uses cryptography for security and runs without a central bank

Bitcoin (BTC) – the first and biggest cryptocurrency, created in 2009 by Satoshi Nakamoto

Altcoin – any cryptocurrency that is not Bitcoin

Token – a digital asset built on top of an existing blockchain (example: USDT on Ethereum)

Blockchain – a public ledger that records every transaction ever made, stored on thousands of computers

Decentralized – no single person or company controls it

Satoshi Nakamoto – the unknown person or group who created Bitcoin

Crypto wallet – a software program or hardware device that stores your private keys and lets you send/receive coins

Private key – your secret password; whoever has it controls the coins

Public key / Address – the “account number” you give people so they can send you crypto

Seed phrase – the 12-24 word backup that can restore your whole wallet

How to Get and Store Crypto

Exchange – website or app where you buy, sell, and trade crypto (Coinbase, Binance, Kraken, etc.)

Centralized exchange (CEX) – an exchange run by a company that holds your coins for you

Decentralized exchange (DEX) – you trade directly from your own wallet, no company in the middle

Fiat – regular government money (USD, EUR, etc.)

On-ramp – buying crypto with regular money

Off-ramp – selling crypto back to regular money

Custodial wallet – the exchange or service keeps your private keys

Non-custodial wallet – you and only you hold the private keys

Hardware wallet – physical device (Ledger, Trezor) that keeps your keys offline

Hot wallet – wallet connected to the internet

Cold storage – keeping coins completely offline

Core Blockchain & Network Terms

Node – a computer that runs the blockchain software and keeps a full copy

Miner – person or company that secures the network and gets rewarded with new coins

Proof of Work (PoW) – miners compete with computer power to add the next block (Bitcoin)

Proof of Stake (PoS) – people “stake” their coins to validate transactions (Ethereum today)

Block – a bundle of transactions added to the chain

Hash – a unique fingerprint of data

Consensus – how the network agrees what the truth is

Halving – event every four years (Bitcoin) when the new-coin reward gets cut in half

Fork – when a blockchain splits into two different chains

Hard fork – permanent split, new coin created (example: Bitcoin Cash)

Soft fork – backward-compatible update

DeFi (Decentralized Finance) – the “new banking” on the blockchain

DeFi – financial services without banks (lending, borrowing, earning interest)

Smart contract – self-executing code that runs exactly as programmed

Ethereum – the blockchain that made smart contracts famous

DApp (decentralized application) – app that runs on a blockchain

Yield farming – moving your crypto around to earn the highest interest

Liquidity pool – pot of money that traders use on DEXes; you can add your money and earn fees

AMM (Automated Market Maker) – the math that replaces order books on DEXes

Impermanent loss – the risk you take when providing liquidity

Staking – locking up coins to help secure a Proof-of-Stake network and earn rewards

Stablecoins & Tokens

Stablecoin – cryptocurrency designed to stay at $1 (or close)

USDT (Tether) – biggest stablecoin, claims 1-to-1 backing with dollars

USDC – transparent stablecoin issued by Circle and Coinbase

DAI – decentralized stablecoin backed by crypto collateral

Trading & Exchange Terms

Order book – list of buy and sell orders on an exchange

Market order – buy or sell right now at the current price

Limit order – buy or sell only when price hits the level you set

Spot trading – buying the actual coin right now

Margin trading – borrowing money from the exchange to trade bigger

Leverage – how many times you multiply your position (5x, 10x, 100x)

Long – betting the price will go up

Short – betting the price will go down

Futures contract – agreement to buy or sell later at a set price

Perpetual contract – futures with no expiry date (very popular in crypto)

Funding rate – small payment between longs and shorts to keep perpetuals close to spot price

Liquidation – when your margin position gets closed because price moved against you

Bid – the highest price someone is willing to pay

Ask – the lowest price someone is willing to sell

Spread – difference between bid and ask

Slippage – when you get a worse price than expected because the market moved

Maker – someone who places a limit order that sits in the order book

Taker – someone who hits an existing order and takes liquidity

Trading pair – what you’re trading (BTC/USDT, ETH/BTC, etc.)

Volume – how many coins traded in a period

Market cap – price × circulating supply; rough size of a project

Fully diluted market cap – what market cap would be if all coins ever created were in circulation

Circulating supply – coins that are actually out and trading

Total supply / Max supply – how many will ever exist

Charting & Technical Analysis (TA)

Candlestick – the little red/green bars that show price movement

Support – price level where buyers usually step in

Resistance – price level where sellers usually appear

Trendline – line you draw to see the direction

Moving average (MA) – average price over X days (50-day, 200-day are popular)

RSI (Relative Strength Index) – shows if something is overbought or oversold

MACD – momentum indicator many traders watch

Fibonacci retracement – tool to find possible support/resistance levels

Breakout – price moves strongly above resistance or below support

Bullish / Bearish – expecting price up or down

ATH (All-Time High) – highest price ever

ATL (All-Time Low) – lowest price ever

Pump and dump – artificial price run-up followed by insiders selling

FUD (Fear, Uncertainty, Doubt) – negative news spread to scare people into selling

FOMO (Fear Of Missing Out) – jumping in because price is running

Security & Common Risks

Phishing – fake emails or websites trying to steal your keys or password

Rug pull – project creators disappear with everyone’s money

51% attack – when someone controls more than half the mining power and can cheat

Dusting attack – sending tiny amounts to your address to try to track you

KYC (Know Your Customer) – exchanges asking for ID to follow government rules

AML (Anti-Money Laundering) – rules to stop illegal money moving through crypto

Bigger Picture & Regulation

HODL – “hold on for dear life”; refusing to sell during dips

Whale – person or group with a huge amount of coins

Bagholder – someone stuck holding coins that crashed

Moon / To the moon – price going way up

Adoption – more people and companies actually using crypto

Mainstream adoption – when regular stores and banks accept it

CBDC (Central Bank Digital Currency) – government version of digital money

ETF (Exchange-Traded Fund) – traditional investment fund that holds Bitcoin (approved in 2024 in the US)

Regulation – governments making rules for crypto (some countries ban it, some welcome it)

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