vt.

1. 删去，划掉；勾销，盖销（邮票等）
   You should cancel this preposition in the sentence.

   你应该删去句子中的这个介词。

2. 取消，废除；中止
   The game was cancelled because of the rain.

   比赛因为下雨而取消了。

3. 抵消，对消[（+out）]
   This will cancel your debt to me.

   这可抵消你欠我的债务。

4. 【数】约去，消去[（+out）]
5. 销（帐）[（+out）]

vi.

1. 【数】相约，相消
2. 互相抵消
   The $5 I owed him and the $5 he owes me cancel out.

   他和我各欠对方五美元，正好相互抵消。

3. 取消；中止

n.[C]

1. 删除；取消；撤销
2. 轧票钳，打孔器[P1]

v.

1. decide that (a planned event) will not take place.
   ▸annul or revoke:

   his visa had been cancelled.
2. mark or tear (a ticket or stamp) to show that it has been used or invalidated.
3. (often cancel something out) (of a factor or circumstance) neutralize or negate the effect of (another).
4. Mathematics  delete (an equal factor) from both sides of an equation or from the numerator and denominator of a fraction.

n.

1. a mark made on a postage stamp to show that it has been used.
2. Printing  a new page or section inserted in a book to replace the original text.
3. US (in music) a natural sign (♮).