1. to decide that something that was planned will not happen
2. to stop something from continuing or being valid
3. to mark something so it cannot be used again

1. the act of canceling something

Examples

• We had to cancel our vacation due to the storm.
• The airline canceled three flights this morning.
• Please cancel my subscription to the magazine.
• The post office will cancel the stamps on your letter.
• The two forces cancel each other out.
• The concert cancel was announced just hours before showtime.