Answer: cancelling

AnswerCrossword Clue
cancellingAbolish or make void (a financial obligation)
cancellingMark, pierce, or tear (a ticket, check, or postage stamp) to show that it has been used or invalidated
cancellingDecide or announce that (an arranged or planned event) will not take place
cancellingCANCEL, to annul (to declare void)
cancellingAnnul or revoke (a formal arrangement which is in effect)
cancelling(of a factor or circumstance) Neutralize or negate the force or effect of (another)
cancellingDelete (an equal factor) from both sides of an equation or from the numerator and denominator of a fraction