The term CASH REGISTER KEY is composed of five crossword solutions: RECEIPT (7 letters), TENS (4 letters), ONES (4 letters), TILL (4 letters), and NOSALE (6 letters). RECEIPT is a document that serves as proof of a transaction, usually given to the customer. TENS refers to the number 10 in the decimal system. ONES is the number 1 in the decimal system. TILL is a cash register or drawer used to store money. NOSALE is a key on a cash register that prevents a sale from being made.