call somebody/something ↔ off phrasal verb ( see also ↑ call )
1 . to decide that a planned event will not take place SYN cancel :
The trip to Italy might be called off.
2 . to officially decide that something should be stopped after it has already started:
Rescuers had to call off the search because of worsening weather conditions.
3 . to order an animal or person to stop attacking or threatening someone:
Call your dog off.