tighten vt.& vi.

To make or become nervous or upset.

使緊張，使慌亂使或變得緊張或困惑

To bring into close association or union.

使緊密結合，使成整體

Any of various devices used to fasten something securely.

緊握之物用來緊緊扣住東西使其安全的裝置

I can' t concentrate with you breathing down my neck.

你這樣緊緊盯著我, 使我精神無法集中.

Fear froze the pilot to the controls

恐懼使飛機駕駛員緊緊抓住操縱桿。

Press hard on the two surfaces, to make them stick together.

用力擠壓這兩面，使它們緊緊粘在一起。

tighten or fasten by means of screwing motions.

通過連接動作來使變緊或扣緊。

Shoes that are too tight deform the feet.

太緊的鞋使腳變形。

The scrotumtightening sea.

使人的睪丸緊縮的海。

Continuous arguing always winds me up.

連續的爭論總使我緊張。

(cause a military aircraft to)take off suddenly

（使軍用飛機）緊急起飛.

To make intense, excited, or nervous.

使…熱切、興奮或緊張

I closed up the space between the lines of print.

我使印刷的行距靠緊些。

close(sth)up;;come or bring(sth)closer together

使靠緊、靠近或靠攏

A high-pressure job.

使人高度緊張的工作

He closed his jaws on the bones and crunched.

他咬緊骨頭，使勁地嚼。

the health-care exigency.

出現緊急情況使要報警。

To connect with a tongue-and-groove joint.

楔緊用楔形部件使密接