(cancelled, cancelling; <美> 亦作canceled, canceling) with obj.
1
- decide or announce that (an arranged or planned event) will not take place取消; 中止：
he was forced to cancel his visit.
他被迫取消访问。
1.1
- annul or revoke (a formal arrangement which is in effect)宣布作废; 使无效：
his visa had been cancelled.
他的签证被注销了。
1.2
- abolish or make void (a financial obligation)注销, 免去（金融债务）：
I intend to cancel your debt to me.
我打算免去你欠我的债务。
1.3
- mark, pierce, or tear (a ticket or stamp) to show that it has been used or invalidated注销, 盖销（车票, 邮票）：
cancelling stamps on registered mail.
盖销挂号信上的邮票。
2
- (of a factor or circumstance) neutralize or negate the force or effect of (another)（因素, 情况）抵消, 对消：
the electric fields may cancel each other out.
诸电场可相互抵消。
2.1
- Mathematics delete (an equal factor) from both sides of an equation or from the numerator and denominator of a fraction【数】（从方程式或分数的分子, 分母）约去, 消去（相等因子）。
1
- a mark made on a postage stamp to show that it has been used邮票注销章, 戳记。
2
- Printing a new page or section inserted in a book to replace the original text, typically to correct an error【印刷】经修正的版面：
as modifier a cancel title page.一张经过修正的扉页。
3
- US (in music) a natural sign〈美〉（音乐用语）本位记号。
词源
late Middle English （ the sense 'obliterate or delete writing by drawing or stamping lines across it'）： from Old French canceller, from Latin cancellare, from cancelli 'crossbars'.