Box-office purchases refer to the buying of tickets for movies, concerts, plays, and other events. The term BOX-OFFICE PURCHASES can be broken down into two words: 'box-office' and 'purchases'. The word 'box-office' is used to describe the place where tickets are sold, while 'purchases' refers to the act of buying tickets. The seven-letter solution for this term is TICKETS, which is what people buy when they make box-office purchases.