knife

noun

1. 刀
   a sharp blade with a handle, used for cutting or as a weapon
   1. knives and forks
      刀叉
   2. a sharp knife
      锋利的刀
   3. a bread knife (= one for cutting bread)
      切面包刀
   4. She was murdered in a frenzied knife attack.
      她被乱刀残杀。

verb

1. 用刀伤害（或杀害）
   to injure or kill sb with a knife

knives is the plural form of the noun and knifes is the third person singular of the present tense of the verb. knives 是该词的名词复数形式，knifes 是该词的动词现在时第三人称单数形式。


1. N-COUNT 刀
   A knife is a tool for cutting or a weapon and consists of a flat piece of metal with a sharp edge on the end of a handle.
   1. ...a knife and fork...
      一副刀叉
   2. Two robbers broke into her home, held a knife to her throat and stole her savings.
      两个盗贼闯进了她的家，把刀架在她的脖子上，抢走了她的积蓄。
2. VERB 用刀伤害
   To knife someone means to attack and injure them with a knife.
   1. Dawson takes revenge on the man by knifing him to death...
      道森用刀杀死了他的仇人。
   2. She was knifed in the back six times.
      她的背部中了6刀。
3. 手术刀
   A surgeon's knife is a piece of equipment used to cut flesh and organs during operations. It is made of metal and has a very thin sharp edge.
4. PHRASE 接受手术；动手术
   If you go under the knife, you have an operation in a hospital.
   1. Kelly was about to go under the knife when her surgeon stopped everything.
      凯莉的手术就要开始时被她的外科医生给叫停了。
5. See also: carving knife fish knife flick knife palette knife paper knife pocket knife Stanley knife
6. PHRASE 轻而易举；毫无困难
   If someone does something like a knife through butter or like a hot knife through butter, they do it very easily.
   1. Spending by Japanese companies has left them more competitive than companies in other nations. They will be cutting through the competition like a hot knife through butter.
      日本公司的支出使得它们比其他国家的公司更具竞争力。它们将在竞争中轻而易举地取胜。
7. PHRASE （紧张的气氛）使人透不过气来
   If you have been in a place where there was a very tense atmosphere, you can say that you could have cut the atmosphere with a knife.
   1. Officials hung the flag upside down. You could have cut the atmosphere with a knife.
      官员们把旗子挂倒了。气氛紧张得让人透不过气来。
8. PHRASE 对…磨刀霍霍；对…兴师问罪
   If a lot of people want something unpleasant to happen to someone, for example if they want them to lose their job, you can say that the knives are out for that person.
   1. The Party knives are out for the leader.
      该党派要向其领导人开刀了。
9. PHRASE 落井下石；往伤口上撒盐
   If you twist the knife or if you turn the knife in someone's wound, you do or say something to make an unpleasant situation they are in even more unpleasant.
   1. Travis twisted the knife by laughing at her...
      特拉维斯火上浇油般地嘲笑她。
   2. It is the turn of Latvia to twist the knife.
      轮到拉特维亚落井下石了。

1. She'd cut a jagged hole in the tin, bending a knife in the process.
   她在罐头上曲里拐弯地划了个口，其间还弄弯了一把小刀。
2. I did not know Jamie had a knife
   我不知道杰米有一把刀。
3. He laid his knife down.
   他放下刀。
4. We must be as impersonal as a surgeon with his knife
   我们必须像外科医生拿手术刀时一样冷静客观，不受任何感情影响。
5. Two robbers broke into her home, held a knife to her throat and stole her savings.
   两个盗贼闯进了她的家，把刀架在她的脖子上，抢走了她的积蓄。
6. Dawson takes revenge on the man by knifing him to death
   道森用刀杀死了他的仇人。
7. She was knifed in the back six times.
   她的背部中了6刀。
8. Kelly was about to go under the knife when her surgeon stopped everything.
   凯莉的手术就要开始时被她的外科医生给叫停了。
9. Spending by Japanese companies has left them more competitive than companies in other nations. They will be cutting through the competition like a hot knife through butter.
   日本公司的支出使得它们比其他国家的公司更具竞争力。它们将在竞争中轻而易举地取胜。
10. Officials hung the flag upside down. You could have cut the atmosphere with a knife.
    官员们把旗子挂倒了。气氛紧张得让人透不过气来。
11. The Party knives are out for the leader.
    该党派要向其领导人开刀了。
12. Travis twisted the knife by laughing at her
    特拉维斯火上浇油般地嘲笑她。
13. It is the turn of Latvia to twist the knife.
    轮到拉特维亚落井下石了。
14. Pare the brown skin from the meat with a very sharp knife
    用一把非常锋利的刀将褐色的皮从肉上剥去。
15. His surgical instruments were a knife and a pair of pincers.
    他的外科手术器械是一把刀和一把钳子。
16. I plunged in my knife and fork.
    我插入了刀叉。
17. She produced the knife during arguments with her friends.
    在和朋友争吵的时候，她掏出了刀。
18. I pulled a knife and threatened her.
    我拔出刀威胁她。
19. Using a sharp knife, cut away the pith and peel from both fruits
    用一把锋利的刀削去两种水果的外皮和中果皮。
20. He sheathed the knife and strapped it to his shin.
    他将刀插入鞘中，绑在小腿上。
21. Some punk stuck a knife in her last night
    有个小流氓昨晚扎了她一刀。
22. The knife stuck in the ground at his feet.
    刀扎在了他脚边的地上。
23. He knew that under the surgeon's knife he would surely die
    他知道他必定会死在外科医生刀下。
24. He tied her up and threatened her with a six-inch knife
    他把她捆起来，拿着一把6英寸长的刀子威胁她。
25. He picked up the knife and gave it to me
    他捡起刀子递给我。
26. Trim off the excess pastry using a sharp knife
    用一把快刀切去多余的饼皮。
27. May I use your knife for a while?
    我使一下你的小刀好吗？
28. The edge of the knife is turned.
    刀卷口了。
29. The boy traded his knife for a cricket bat.
    那男孩用他的刀子换了一个板球棒。
30. The knife is blunt.
    刀钝了。

n.

the knives are out (for sb)

• （对某人）磨刀霍霍，兴师问罪
  the situation has become so bad that people are preparing to make one person take the blame, for example by taking away their job

like a knife through butter

• 轻而易举；毫无困难
  easily; without meeting any difficulty

put/stick the knife in

put/stick the knife into sb

• 对某人怀恨在心；加害于某人
  to be very unfriendly to sb and try to harm them

turn/twist the knife (in the wound)

• 恶意地说（或做）；落井下石；往伤口上撒盐
  to say or do sth unkind deliberately; to make sb who is unhappy feel even more unhappy

under the knife

• 接受手术；动手术
  having a medical operation

noun

1. edge tool used as a cutting instrument

2. a weapon with a handle and blade with a sharp point

3. any long thin projection that is transient
   1. tongues of flame licked at the walls
   2. rifles exploded quick knives of fire into the dark

   Synonym:    tongue

verb

1. use a knife on
   1. The victim was knifed to death

   Synonym:    stab