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IELTS BNC: 4294 COCA: 4536
tighten
taɪtən ˈtaɪtən
Word forms: 3rd person singular present tense tightens, present participle tightening, past tense , past participle tightened
1 V-ERG 抓紧;攥紧 If you tighten your grip on something, or if your grip tightens, you hold the thing more firmly or securely. 抓紧;攥紧

  • Luke answered by tightening his grip on her shoulder. [VERB noun]

    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. [VERB prep.]

    她充满感激，把他的脖子搂得更紧了。

  • Stefano's grip tightened and his tone became colder. [VERB]

    斯蒂芬诺的手抓得更紧了，语气也更冷了。

SYN close, narrow, strengthen, squeeze
2 V-ERG 绷紧，拉紧(绳、链) If you tighten a rope or chain, or if it tightens, it is stretched or pulled hard until it is straight. 绷紧，拉紧(绳、链)

  • The anchorman flung his whole weight back, tightening the rope. [VERB noun]

    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. [VERB]

    缆绳绷紧了，他被慢慢地吊离了甲板。

SYN stretch, strain, tense, tauten
3 V-ERG (对…)严加控制;(使)加强控制 If a government or organization tightens its grip on a group of people or an activity, or if its grip tightens, it begins to have more control over it. (对…)严加控制;(使)加强控制

  • He knows he has considerable support for his plans to tighten his grip on the machinery of central government. [VERB noun]

    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. [VERB]

    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 VERB 拧紧，旋紧(螺钉、螺丝帽等) When you tighten 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. 拧紧，旋紧(螺钉、螺丝帽等) [Also VERB n PREPOSITION]

  • I used my thumbnail to tighten the screw on my lamp. [VERB noun]

    我用拇指指甲把台灯上的螺钉拧紧了。

  • All the bolts were fully tightened. [VERB noun]

    所有的螺钉都拧紧了。

SYN fasten, secure, screw, fix
Tighten up means the same as tighten .tighten up 同 tighten

  • It's important to tighten up the wheels properly, otherwise they vibrate loose and fall off.

    把轮子拧紧是很重要的，否则它们会因振动松动、脱落。

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

  • Sofia's throat had tightened and she couldn't speak. [VERB]

    索菲娅喉咙哽住了，说不出话来。

  • She saw his jaw tighten and his face lose its colour. [VERB]

    她看见他的下巴绷紧，脸色煞白。

SYN contract, narrow, constrict, become tight
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 VERB 使(规定、政策、制度)更加严格；使更加有效 If someone in authority tightens a rule, a policy, or a system, they make it stricter or more efficient. 使(规定、政策、制度)更加严格；使更加有效 [Also VERB n PREPOSITION]

  • The United States plans to tighten the economic sanctions currently in place. [VERB noun]

    美国计划加大现有经济制裁的力度。

  • They have tightened security along the border. [VERB noun]

    他们加强了边境的安全工作。

  • Take-off and landing procedures have been tightened after two jets narrowly escaped disaster. [be VERB-ed]

    在两架喷气机差点出事故之后，起飞和降落的操作规程更加严格了。

SYN increase, heighten, toughen (up), beef up [informal]
Tighten up means the same as tighten .tighten up 同 tighten

  • Until this week, every attempt to tighten up the law had failed.

    到本周为止，一切旨在严格执法的努力都失败了。

  • He accused ministers of breaking election pledges to tighten up on immigration.

    他指责部长们没有兑现在竞选中许下的加强移民管制的诺言。

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 to tighten your belt→see: belt  to tighten the screw→see: screw 
Phrasal verbs:
tighten up
Trends of tighten
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IELTS BNC: 4294 COCA: 4536
tighten

verb

ADVERB | VERB + TIGHTEN | PREPOSITION ADVERB➤a little, slightly, etc.使稍微變緊；使稍緊一些➤considerably大幅收緊▸➤gradually, slowly逐步／慢慢變緊▸➤suddenly突然變緊▸➤instinctively, involuntarily, unconsciously本能地／不由自主地／無意識地收緊◇Her fingers tightened unconsciously with every jolt she received.她每受一次顛簸，她的手指都會無意識地並攏。➤painfully緊得令人痛苦▸➤up使更牢固◇Can you tighten up the bolts for me?你能幫我緊緊螺栓嗎？VERB + TIGHTEN➤seem to好像變緊▸➤feel sth感到⋯變緊◇He felt his stomach tighten.他感到肚子發緊。➤make sth使⋯變緊◇His words made her throat tighten.他的話使她喉嚨發緊。PREPOSITION➤about, around, round (especially BrE) 緊繞着⋯◇His hand tightened painfully around her wrist.他的手緊緊握住她的手腕，弄得她生疼。➤on抓緊⋯◇Her grip seemed to tighten on the door handle.她似乎把門把手抓得更緊了。➤in因⋯變緊◇He saw his father's jaw tighten in irritation.他看到父親氣得緊咬牙關。➤into緊閉成⋯◇His mouth tightened into a thin hard line.他的嘴緊繃成一道細縫。➤with因為⋯變緊◇Her face tightened with pain.她痛得緊繃着臉。
IELTS BNC: 4294 COCA: 4536
tighten verb
⇨ tighten (tighten your grip) ⇨ tighten your belt ⇨ save 2 tighten

verb

tighten ♦︎ clench ♦︎ tense ♦︎ grit your teeth ♦︎ screw your eyes/face upThese words all mean to make sth become tight or tighter. 这些词均表示使变紧、使更加牢固。PATTERNS AND COLLOCATIONS 句型和搭配◆to tighten / clench / tense / grit your teeth / screw your eyes up with / in pain, irritation, etc.◆to tighten / clench your hand / fist / jaw◆to tighten / tense your muscles◆to clench / grit your teeth◆your jaw / hand tightens / clenches / tenses◆your fist / stomach tightens / clenches◆your muscles tighten / tense◆to tighten / clench / tense (sth) involuntarily◆to clench / grit your teeth / screw your eyes up tight / tightly■ tighten [intransitive, transitive] to become or make sth tight or tighter 使变紧；使更加牢固◆His mouth tightened into a thin line.他的嘴紧抿成一道细缝。◆This tool is for tightening screws.这个工具是用来拧紧螺丝的。◆She tightened her grip on his arm.她把他的手臂抓得更紧了。◆The brake cable needs tightening up.刹车线需要调紧。OPP relax , loosen , slacken ⇨ relax 2 ■ clench [transitive, intransitive] to press your hands, teeth or stomach muscles together tightly, usually showing that you are angry, determined or upset; (of hands, teeth or stomach muscles) to be pressed together tightly in this way （通常表示愤怒、决心或不安时）捏紧，绷紧，咬紧◆He clenched his fists in anger.他愤怒地攥紧了拳头。◆Through clenched teeth she told him to leave.她咬牙切齿地让他离开。◆His fists clenched slowly until his knuckles were white.他慢慢握紧拳头，指关节都发白了。■ tense tens [intransitive, transitive] to make your muscles tight and stiff, especially because you are not relaxed （尤指因紧张）绷紧（肌肉）；（肌肉）拉紧◆She tensed, hearing the strange noise again.再次听到那个奇怪的声音时，她紧张起来。◆He tensed himself, listening to see if anyone had followed him.他绷紧神经，仔细听是否有人跟踪自己。◆Expecting a blow, she tensed every muscle in her body.她绷紧了全身肌肉，准备接受打击。 OPP relax ⇨ relax 2   see also tense ⇨ tense adj. ■ grit your ˈteeth

idiom

(-tt-)to bite your teeth tightly together; to be determined to continue to do sth in a difficult or unpleasant situation 咬紧牙关；下定决心；鼓起勇气◆She gritted her teeth against the pain.她咬牙忍痛。◆It started to rain harder, but we gritted our teeth and carried on.雨开始大起来，可我们鼓起勇气继续进行。NOTE 辨析 Grit your teeth or clench your teeth? Grit your teeth is used especially to talk about showing determination; clench your teeth is used more often to talk about keeping your mouth tightly shut in order to avoid making a noise such as shouting with anger or pain, or in order to stop your teeth from knocking together because you are cold or frightened. * grit your teeth尤用于显示决心；clench your teeth更常指闭紧嘴巴，以避免因愤怒或痛苦而喊出声，或避免因寒冷或害怕而牙齿打颤。■ ˌscrew your ˈeyes up■ ˌscrew your ˈface up

idiom

to tighten the muscles of your eyes or face, for example because the light is too strong, you are in pain or you don't like the taste or look of sth （因光线太强、疼痛或厌恶等）瞇起眼睛，面容扭曲◆He took a sip of the medicine and screwed up his face.他喝了一小口药，脸扭作一团。
IELTS BNC: 4294 COCA: 4536

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