The word remittance is derived from the word "remit," and the meaning of this word is to send back. There are many scenarios when it comes to remittance. In general, it is used when you make personal transfers to send money to your friends and family who are living abroad, and if you make any business transactions.
Bank remittances basically involve two entities or individuals who have separate bank accounts, and often they live in different countries.
Example: When a person working abroad sends money to their family in their home country, then it is also considered remittance.