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v. can·celed, can·cel·ing, can·cels also can·celled or can·cel·ling
a. To annul or invalidate: cancel a credit card.
b. To decide or announce that (a planned or scheduled event) will not take place, especially with no intention of holding it at a later time: cancel a picnic; cancel a soccer game.
a. To cross out with lines or other markings. See Synonyms at erase.
b. To mark or perforate (a postage stamp or check, for example) to indicate that it may not be used again.
3. To neutralize or equalize; offset: Today's decline in stock price canceled out yesterday's gain.
4. Mathematics
a. To remove (a common factor) from the numerator and denominator of a fractional expression.
b. To remove (a common factor or term) from both sides of an equation or inequality.
To neutralize one another; counterbalance: two opposing forces that canceled out.
The act or an instance of canceling; a cancellation.

[Middle English cancellen, from Old French canceller, from Latin cancellāre, to cross out, from cancellus, lattice, diminutive of cancer, lattice.]

can′cel·a·ble adj.
can′cel·er n.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Adj.1.cancelled - (of events) no longer planned or scheduled; "the wedding is definitely off"
References in classic literature ?
In her death she winged her way back to her calm untroubled youth, and cancelled all the rest.
Miserably I went to bed after all, and miserably thought of Estella, and miserably dreamed that my expectations were all cancelled, and that I had to give my hand in marriage to Herbert's Clara, or play Hamlet to Miss Havisham's Ghost, before twenty thousand people, without knowing twenty words of it.
Death seemed to have cancelled her marriage and womanhood; he had never seen her look so young.
Great, therefore, was the astonishment when at the end of the month, he cancelled all his obligations with his usual punctuality.
He kept a meticulous eye on all her cancelled checks and knew to a penny what she spent.
He had never liked the prospect, though he had been prepared to go through with it, and to feel that it was definitely cancelled made up for a good deal.
If he really meant it--if his will were genuine and real, which it was--it appeared to him that it was the same as coin, and cancelled the obligation.
The Portuguese grocer refused him further credit, while the greengrocer, who was an American and proud of it, had called him a traitor to his country and refused further dealings with him - carrying his patriotism to such a degree that he cancelled Martin's account and forbade him ever to attempt to pay it.
A rough speech, but it pleased Polly better than the smoothest Tom had ever made in her hearing, for something in his face and voice told her that the friendly act had roused a nobler sentiment than gratitude, making the cancelled obligations of the boy, debts of honor to the man.
The trust that they had reposed in him was trivial, but he felt that it cancelled his mistrust for them, and that probably he would not be "had" over his umbrella.
And so the schoolmistress reconciled the recommendation to her conscience, and the indentures were cancelled, and the apprentice was free.
From the days of their honeymoon, Minnie Gowan felt sensible of being usually regarded as the wife of a man who had made a descent in marrying her, but whose chivalrous love for her had cancelled that inequality.