The term refers to the impact left a bank account and credit cards found on the right side of an account. A debit is always entered in the left column of a journal or general ledger account and a credit is always entered in the left column. Debit abbreviated abbreviated Dr. and Credit Cr.
If you (a record) are the account for an entry in the left column of an account debit. Whether the stress is an increase or decrease depends on the type of account. Likewise, if you post (a record) an entry in the left column of an account that is credited to this account. Whether the loan is an increase or decrease depends on the type of account.