Mt. Gox is one of the first and largest Bitcoin exchanges, based in Japan. Its closure after a major loss of funds became one of the most famous events in the history of cryptocurrencies.
A millibitcoin (mBTC) is one thousandth of a bitcoin, that is, 0.001 BTC. This fractional unit is used to conveniently display small amounts in this cryptocurrency.
A microtransaction is a payment of a very small amount, often less than the minimum monetary unit. Such operations are unprofitable for traditional payment systems because of fees, while cryptocurrencies make them feasible.
A merchant account is a special trade account for a business used to accept non-cash payments by cards and over the internet. It links the seller to the payment infrastructure and the acquiring bank.
A merchant is a trade or service business that accepts payment cards and, in many cases, cryptocurrencies. The term comes from the English word merchant.
Margin trading is trading on an exchange using borrowed funds that increase the size of a position through leverage. The method can amplify both a trader's profit and losses.
A money hold is a temporary restriction on money operations on an exchange: a delay in depositing, withdrawing or using funds. It is usually imposed under the venue's rules or as part of checks.
Mining is the process of supporting the operation of a blockchain by solving computational tasks, for which participants receive a reward in coins. The issuance of many cryptocurrencies is based on it.
A "lohovod" is a person who lures newcomers into dubious or hyped projects while concealing risks they are aware of. The goal of such a person is to attract other people's money for their own benefit.
In Russian-speaking slang a "loss" (from the English loss) is a nickname for a trading loss on an exchange. Most often it refers to closing a position with a loss of funds, including when a stop order is triggered.