coin – n. a small, flat, and usually round piece of metal used as money
deposit – v. to put (money) in a bank account
change – n. coins as opposed to paper money
chain – n. a group of stores or other businesses that have the same name and appearance and sell the same products or services
inconvenience – n. trouble or problem
cash – n. metal pieces of money or notes, such as dollar bills
bill – n. a banknote; a piece of paper money
tooth – n. a hard, bony structure in the moths of people and most animals