to cancel something,
to decide to stop something that is already happening
15 Phrasal Verbs with CALL: call up, call out, call around …
Call after – To give a child the same name as someone else, especially a family member. Call up – To phone somebody. Call on – To visit someone. Call off – To cancel an organised event.
Difference Between OF and OFF! – MyEnglishTeacher.eu
Difference between OF and OFF OF (preposition) 1.Belong to or relate to someone or something He has a fear of spiders. Jessica is a good friend of Melinda. In college, we studied the works of Emmanuel Kant. 2.Show an amount We need two pounds of apples. There are a lot of students outside.