tighten，英语单词，主要作为动词。作动词时译为“使变紧，使紧固；旋紧，拧紧；抓紧，攥紧；嘴巴撅起，双唇紧闭；使肌肉或身体某部位变得僵硬，绷紧；对……严加控制”等。

英 [ˈtaɪt(ə)n] 美 [ˈtaɪt(ə)n]

v. （使）变紧，（使）紧固；旋紧，拧紧；抓紧，攥紧；（由于生气而）（嘴巴）撅起，（双唇）紧闭；（使）（肌肉或身体某部位）变得僵硬，绷紧；使（规定、政策、制度）更加严格，使更加有效；（对……）严加控制，（使）加强控制；<美>（比赛）变得激烈（紧张）

[ 第三人称单数 tightens 现在分词 tightening 过去式 tightened 过去分词 tightened ]

柯林斯英汉双解大词典

tighten /ˈtaɪtən/ TEM4 ( tightening, tightened, tightens )

1.V-T/V-I If you tighten your grip on something, or if your grip tightens, you hold the thing more firmly or securely. 抓紧

2. V-T/V-I If you tighten a rope or chain, or if it tightens, it is stretched or pulled hard until it is straight. 使 (绳或链) 拉紧; 拉紧

3. V-T/V-I 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…加强控制; 加强控制

4. V-T 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 (螺丝、螺帽等)

5. PHRASAL VERB Tighten up means the same as . 拧紧 (同 )(tighten)

6. V-I If a part of your body tightens, the muscles in it become tense and stiff, for example, because you are angry or afraid. (身体部位因生气或害怕) 变得僵硬

7. V-T If someone in authority tightens a rule, a policy, or a system, they make it stricter or more efficient. 使 (规定、政策或制度) 更严格; 使更有效

8. PHRASAL VERB Tighten up means the same as . 使…更严格

9. to tighten your belt →see belt

to tighten monetary policy 紧缩银根 ; 缩短银根

tighten tax collection 加强税收政策

tighten up 使紧密 ; 拉紧 ; 加强 ; 绷紧

tighten up monetary policy 收紧银根

tighten one's belt 勒紧裤带 ; 节约 ; 束紧腰带 ; 过紧日子

tighten the money supply 紧缩银根

Tighten the screw 上紧螺丝 ; 螺丝扳紧

tighten budget 紧缩预算

fast tighten vice 快速台虎钳