The crossword solutions for the term BANKBOOK ENTRY (ABBR.) are DEP (3 letters) and INT (3 letters). DEP stands for deposit, which is a transaction in which money is added to a bank account. INT stands for interest, which is a fee charged by a bank for the use of its money. Together, DEP and INT represent a bankbook entry, which is a record of all deposits and interest payments made to a bank account.