Call off Definition 1 of 4Pro Tip 1/3Event Disruption Used when an event is interrupted or prevented from happening, usually something organized. They had to call off the parade due to the storm warnings. Pro Tip 2/3Last Minute Often implies a decision made close to the event time, sometimes unexpectedly. The concert was called off at the last minute. Pro Tip 3/3Alternative Plans Implies that alternative arrangements may need to be made after cancellation. After they called off the wedding, they met to discuss what to do next.