What does Tranche mean?

Tranche is a word which has entered the financial area from the French language, and it basically means “portion”. The tranches have a hierarchal organizing, especially in the field of investments, and those who are used to such transactions, already know that the tranches are bought based on their level of risk. One can find securities of type A, B, or C, and depending in which does the businessman invest his money his money, will he get paid.