Wallet: a small folding case for carrying paper money, credit cards and other flat objects, that can be carried in a pocket.
Cash: money in the form of notes and coins, rather than cheques or credit cards.
Sale: an act of exchanging something for money.
Coin: a small, round piece of metal, usually silver or copper coloured, that is used as money.
Receipt: something such as a piece of paper or message proving that money, goods, or information have been received.
