cancel definition

1. postpone indefinitely or annul something that was scheduled
• examples: Call off the engagement
• examples: cancel the dinner party
• examples: we had to scrub our vacation plans
• examples: scratch that meeting--the chair is ill
2. make up for
• examples: His skills offset his opponent's superior strength
3. declare null and void; make ineffective
• examples: Cancel the election results
• examples: strike down a law
4. make invalid for use
• examples: cancel cheques or tickets