airdrop
a distribution of a cryptocurrency token or coin, usually for free, to numerous wallet addresses. Airdrops are primarily implemented as a way of gaining attention and new followers, resulting in a larger user-base and a wider disbursement of coins. (Wikipedia)
coin
a specific cryptocurrency (e.g. Bitcoin, Ethereum, Dogecoin)
cold wallet
a cryptocurrency wallet that is not Internet-connected, in contrast to a "hot wallet"
dApp / decentralized app
a computer application that runs on a decentralized computing system (Wikipedia)
DAO / decentralized autonomous organization
an organization represented by rules encoded as a computer program that is transparent, controlled by the organization members and not influenced by a central government (Wikipedia)
DeFi / decentralized finance
a blockchain-based form of finance that does not rely on central financial intermediaries such as brokerages, exchanges, or banks to offer traditional financial instruments, and instead utilizes smart contracts on blockchains. Types of DeFi platforms include crypto exchanges, loan platforms, investment and savings accounts, and insurance providers. (Wikipedia)
flash loan
unsecured loans that don't require collateral from the borrower. Funds are borrowed, used, and returned all within one transaction, and they are typically used to provide leverage in arbitrage opportunities. They have also become a common entry point for hackers to exploit flaws in various DeFi protocols. (Radix)
hardware wallet
a type of cold wallet where cryptocurrency is stored on a physical device much like a flash drive (but often with additional features)
hot wallet
a cryptocurrency wallet that is connected to the Internet, which allows the currency to be quickly accessed for trading and spending
liquidity pool
funds locked in a smart contract, which facilitate trading and lending in a given exchange (Binance)
memecoin or shitcoin
cryptocurrency that originated from an Internet meme or has some other humorous characteristic. Examples include Dogecoin, Shiba Inu, and other dog-themed coins. (Wikipedia)
mint
"minting" is the process of creating an NFT from the underlying asset by creating an entry in a blockchain like Ethereum
NFT / non-fungible token
a unique and non-interchangeable unit of data stored on a digital ledger (blockchain). NFTs can be associated with reproducible digital files such as photos, videos, and audio. NFTs use a digital ledger to provide a public certificate of authenticity or proof of ownership, but it does not restrict the sharing or copying of the underlying digital file. (Wikipedia)
pump
pumping (and then dumping) involves artificially inflating the price of a token or project with false or misleading information, allowing those behind it to then "dump" the coin—that is, cash out before the price tanks
rug pull
when a development team suddenly abandons a project and sells or removes all its liquidity (Binance)
smart contract
a computer program or a transaction protocol which is intended to automatically execute, control or document legally relevant events and actions according to the terms of a contract or an agreement (Wikipedia)
stablecoin
cryptocurrencies where the price is designed to be pegged to a cryptocurrency, fiat money, or to exchange-traded commodities (Wikipedia)
tumbler or mixer
a cryptocurrency tumbler (or cryptocurrency mixing service) is a service offered to mix potentially identifiable or "tainted" cryptocurrency funds with others, so as to obscure the trail back to the fund's original source (Wikipedia)
web3
an idea for a version of the Internet that is decentralized and based on peer-to-peer technologies such as public blockchains (Wikipedia)