box office UK /ˈbɒksˌɒfɪs/US /ˈbɑksˌɑfɪs/ noun3 •A place where tickets are sold in a theatre/theater or cinema.The movie tanked at the box office. •The total amount of money paid by people worldwide to watch a movie at cinemas/movie theaters.box office receipts •Quality of an entertainment or spectacle that makes it very popular with the public, or likely to be so.His performance last night was pure box office.A show that makes great box office. formsbox offices · box-offices