Verb:

1. make tight or tighter;

   "tighten the wire"
   

2. become tight or tighter;

   "The rope tightened"
   

3. restrict;

   "tighten the rules"
   "stiffen the regulations"
   

4. narrow or limit;

   "reduce the influx of foreigners"
   

1.抓紧;攥紧
If youtighten your grip on something, or if your griptightens, you hold the thing more firmly or securely.

e.g. Luke answered by tightening his grip on her shoulder...
卢克的回应就是把她的肩头抓得更紧了。
e.g. Her arms tightened about his neck in gratitude...
她充满感激，把他的脖子搂得更紧了。

2.绷紧，拉紧(绳、链)
If youtighten a rope or chain, or if ittightens, it is stretched or pulled hard until it is straight.

e.g. The anchorman flung his whole weight back, tightening the rope...
那个压阵队员使尽了全身力气往后拽，把绳子拉得紧紧的。
e.g. The cables tightened and he was lifted gradually from the deck.
缆绳绷紧了，他被慢慢地吊离了甲板。

3.(对…)严加控制;(使)加强控制
If a government or organizationtightens its grip on a group of people or an activity, or if its griptightens, it begins to have more control over it.

tighten的反义词

e.g. He knows he has considerable support for his plans totighten his grip on the machinery of central government...
他清楚有相当多的人支持他对中央政府机构加强控制的计划。
e.g. As the regime's grip on the mainland tightened over the next few years, hundreds of thousands more people fled south.
随着后来几年那个政权加强对大陆的控制，又有数十万人逃往南方。

4.拧紧，旋紧(螺钉、螺丝帽等)
When youtighten a screw, nut, or other device, you turn it or move it so that it is more firmly in place or holds something more firmly.

tighten的翻译

e.g. I used my thumbnail totighten the screw on my lamp...
我用拇指指甲把台灯上的螺钉拧紧了。
e.g. All the bolts were fully tightened.
所有的螺钉都拧紧了。

5.(身体局部)变僵硬，产生憋闷感，产生阻塞感
If a part of your bodytightens, the muscles in it become tense and stiff, for example because you are angry or afraid.

e.g. Sofia's throat had tightened and she couldn't speak...
索菲娅喉咙哽住了，说不出话来。
e.g. She saw his jawtighten and his face lose its colour.
她看见他的下巴绷紧，脸色煞白。

tightening
...a headache caused by tension which results in tightening of the muscles in the neck.
由于紧张导致颈部肌肉僵硬而引起的头痛
...a slight tightening of the throat.
喉咙微微发紧

6.使(规定、政策、制度)更加严格；使更加有效
If someone in authoritytightens a rule, a policy, or a system, they make it stricter or more efficient.

e.g. The United States plans totighten the economic sanctions currently in place...
美国计划加大现有经济制裁的力度。
e.g. They have tightened security along the border...
他们加强了边境的安全工作。

tightening
...the tightening of state control over press and broadcasting.
政府加强了对出版和广播的控制

7. totighten your belt -> see belt
totighten the screw -> see screw

相关词组：tighten up

1. 紧：马上开船回到镇上,下船之后,马上去钟塔里面,爬上去之后,将刑具(Vise)去转紧(tighten),将刑具套在雕像手中的手杖顶端,再将它放松(Loose). 你会看到那块封印石头(Headpiese)掉下来,将它捡起来. 下船后先朝东走,这时Edmund也出现了,

2. 变紧：tighten up 使紧密 |tighten 变紧 | tightfisted 吝啬的

3. 拉紧：tightemulsion 难破乳的乳状液 |tighten 拉紧 |tightener 紧带轮

4. 拧紧：synchronize,同步 |tighten,拧紧 | under water head condition,水压作用条件下

He tightened his grip on her arm.

他紧抓她的手臂。

The plumber take out a wrench and tighten the bolt.

修水管的工人拿出一把扳手拧紧了螺栓。

This month we have to tighten our belts.

这个月我不得不勒紧裤腰带过日子。

While holding down on the cone, tighten the subbase screws.

用手压住漏斗，拧紧座垫固定螺丝。

If table index shafts are loose, tighten mounting bolts.

如果台面索引轴松动，拧紧固定螺栓。

This screw needs tightening.

这螺丝钉需要再拧紧些。

Controls in the city have gradually tightened.

对这个城市的控制逐渐加强。

The rope holding the boat suddenly tightened and broke.

系船的绳子突然绷断了。

His mouth tightened into a thin line.

他的嘴抿成了一道细缝。

to tighten a lid'/screw'/rope'/knot

拧紧盖子 / 螺钉；绷紧绳子；打紧结

The nuts weren't properly tightened and the wheel came off.

螺母没拧紧，轮子脱落了。

She tightened her grip on his arm.

她抓他的手臂抓得更紧了。

to tighten security

加强安全措施

Laws on gambling have tightened up recently.

有关赌博的法律最近变得更加严厉。

The police are tightening up on under-age drinking.

警方正在采取更加严厉的措施对付未成年人饮酒的问题。

Luke answered by tightening his grip on her shoulder...

卢克的回应就是把她的肩头抓得更紧了。

Her arms tightened about his neck in gratitude...

她充满感激，把他的脖子搂得更紧了。

The anchorman flung his whole weight back, tightening the rope...

那个压阵队员使尽了全身力气往后拽，把绳子拉得紧紧的。

The cables tightened and he was lifted gradually from the deck.

缆绳绷紧了，他被慢慢地吊离了甲板。

He knows he has considerable support for his plans to tighten his grip on the machinery of central government...

他清楚有相当多的人支持他对中央政府机构加强控制的计划。

As the regime's grip on the mainland tightened over the next few years, hundreds of thousands more people fled south.

随着后来几年那个政权加强对大陆的控制，又有数十万人逃往南方。

I used my thumbnail to tighten the screw on my lamp...

我用拇指指甲把台灯上的螺钉拧紧了。

All the bolts were fully tightened.

所有的螺钉都拧紧了。

Sofia's throat had tightened and she couldn't speak...

索菲娅喉咙哽住了，说不出话来。

She saw his jaw tighten and his face lose its colour.

她看见他的下巴绷紧，脸色煞白。

The United States plans to tighten the economic sanctions currently in place...

美国计划加大现有经济制裁的力度。

They have tightened security along the border...

他们加强了边境的安全工作。

• tighten%20up">tighten up绷紧
• tighten%20one%27s%20belt">tighten one's belt束紧腰带
• tighten%20your%20belt">tighten your belt勒紧腰带(忍饥受寒...
• tighten%20the%20economy">tighten the economy紧缩经济
• tighten">under tighten紧密不足
• tighten">belt tighten实行紧缩政策(勒紧裤...
• tightening">belt-tightening强制性节约
• tighten%20the%20screws">tighten the screws拧紧螺丝(加强控制)...
• tighten%20the%20noose%20round%20the%20neck%20of%20someone">tighten the noose round the neck of someone拉紧某人脖子上的绞索...
• tighten%20the%20noose%20around%20the%20neck%20of%20someone">tighten the noose around the neck of someone拉紧某人脖子上的绞索...
• tighten%20the%20purse%20strings">tighten the purse strings节省开支

• The strings are tightened..to produce a musical note when struck.

  出自：S. Mateer

• The illness tightened its grip.

  出自：C. Easton