Aza is a Nigerian slang term that refers to bank account digits, specifically the account number. When someone in Nigeria uses the term "Aza," they are requesting the account number from another person, usually with the intention of sending money to that account.
The term "Aza" is derived from the Edo language. In Edo, "Aza" means several things which include "store room", "treasury house/room", "save box" and "bank ." Over time, this term has become widely adopted across Nigeria as a casual way to refer to bank account numbers.
In Nigerian culture, asking someone to "send your Aza" is a common way to request their bank account number for the purpose of transferring funds. The term has gained traction, particularly in informal settings and among the youth.