1. to cancel or postpone a scheduled performance, event, or entertainment program
The band had to call off the show due to the lead singer's illness.
A banda teve que cancelar o show devido à doença do vocalista.
2. to stop a performance or event that has already begun
The concert organizers decided to call off the show when the storm arrived.
Os organizadores do concerto decidiram cancelar o show quando a tempestade chegou.