Definition of definition for English Language Learners. : an explanation of the meaning of a word, phrase, etc. : a statement that defines a word, phrase, etc. : a statement that describes what something is.
An IBAN (International Bank Account Number) is an international bank account identifier used to uniquely identify the account of a customer at a financial institution. This is the only permissible account identifier for SEPA payments.
The IBAN consists of up to 34 alphanumeric characters, as follows: 1  country code using ISO 3166-1 alpha-2 - two letters, 2  check digits-two digits, and. 3  Basic Bank Account Number (BBAN) - up to 30 alphanumeric characters that are country-specific.