revocation (n.)

• abjuration
• abolishment
• abolition
• abrogation
• annulment
• cancel
• cancellation
• contradiction
• contravention
• countermand
• crossing
• denial
• disaffirmation
• disavowal
• disclaimer
• disowning
• disownment
• disproof
• expatriation
• forswearing
• invalidation
• nullification
• recall
• recantation
• refutation
• renege
• renouncement
• renunciation
• repeal
• repudiation
• rescission
• retraction
• reversal
• revoke
• suspension
• vacation
• voidance
• voiding
• waiver
• withdrawal
• write-off