Billfold (noun)

A small folding case for holding paper money; a wallet.

Origin:

A combination of the words bill, meaning paper money and fold, meaning to bend or crease.

Examples:

1. He pulled out his billfold and handed the cashier a twenty-dollar bill.
2. The billfold was made of leather and had several compartments for cards and ID.
3. He kept his ID, credit cards, and cash in his billfold.
4. She opened her billfold to check if she had enough cash to pay the bill.
5. The billfold was slim and easy to fit in his pocket.