delay - cancel - postpone - put off
If you delay doing something, you do it at a later time.
The government delayed granting passports to them until a week before their departure.
Try and persuade them to delay some of the changes.
If a plane, train, ship, or bus is delayed, it is prevented from leaving or arriving on time.
The coach was delayed for about five hours.
The flight has been delayed one hour, due to weather conditions.
If you cancel something that was arranged, you decide officially that it will not take place.
The Russian foreign minister has cancelled his trip to Washington.
Over 80 flights were cancelled because of bad weather.
‘postpone’ and ‘put off’
If you postpone or put off an event, you arrange for it to take place at a later time than was originally planned. Postpone is more formal than put off.
The crew did not know that the invasion had been postponed.
This is not a decision that can be put off much longer.
The Association has put the event off until October.