The term 'Bill Holder' can be defined by two crossword solutions: WALLET (6 letters) and ATM (3 letters). A WALLET is a small, flat case that is used to carry personal items such as cash, credit cards, identification documents, and other small items. An ATM, or Automated Teller Machine, is an electronic banking outlet that allows customers to make deposits, withdrawals, transfers, and other financial transactions. Therefore, a Bill Holder is someone who carries a WALLET and uses an ATM to manage their finances.