A currency whose value is intended to be constant in relation to a certain asset. For instance, 1 USDT is equivalent to 1 USD. Likewise known as a stablecoin.
Fiat
Fiat money, often known as fiat currency, is money that a government has recognized as legal tender and that it supports.
Pair
Exchange cryptocurrencies with each other, like the trading pair BTC/ETH.
Falling Knife
The term falling knife (also known as "Catching a Falling Knife" or "Catching the Bottoms") refers to the action of buying an asset which is rapidly declining in price.