Collocations for box office - noun

draw, hit, smash, success
failure, flop
gross (AmE), numbers, receipts, takings (esp. BrE)
Box-office receipts for the movie have hit $50 million.

at a/the box office
Tickets are available at the box office.

do badly, well, etc. at the box office
The musical has done very well at the box office (= a lot of tickets have been sold).