abjuration, abjurement, abolishment, abolition, absolute contradiction, annulment, cancel, canceling, cancellation, cassation, contradiction, contrary assertion, contravention, controversion, countering, countermand, counterorder, crossing, defeasance, denial, disaffirmation, disallowance, disavowal, disclaimer, disclamation, disownment, disproof, forswearing, gainsaying, impugnment, invalidation, nullification, recall, recantation, refutation, renege, renunciation, repeal, repudiation, rescinding, rescindment, rescission, retractation, retraction, reversal, revocation, revoke, revokement, setting aside, suspension, vacation, vacatur, voidance, voiding, waiver, waiving, withdrawal, write-off