Translation guide
How to express 'tighten' in Japanese, covering physical fastening, making rules stricter, and tensing muscles.
To make something physically tighter by turning, pulling, or adjusting.
The most common verb for tightening screws, bolts, lids, belts, strings, etc. Transitive.
ネジを締めてください。
Please tighten the screw.
瓶の蓋をしっかり締めた。
I tightened the jar lid firmly.
To pull tight, often used for strings, ropes, or abstract things like discipline. Implies pulling to tighten.
靴ひもを引き締めた。
I tightened my shoelaces.
A general phrase meaning 'to make tight'. Can be used when the specific verb is unknown.
このベルトをもう少しきつくしてください。
Please tighten this belt a little more.
To increase strictness or reduce leniency in regulations, security, or management.
To strengthen or tighten measures, security, regulations. Common in news and formal contexts.
政府は国境の警備を強化した。
The government tightened border security.
会社は経費の管理を強化する方針だ。
The company plans to tighten expense management.
To make stricter. More direct and less formal than 強化する.
校則を厳しくする動きがある。
There is a move to tighten school rules.
Used metaphorically to tighten discipline, budgets, or control. Implies pulling things together firmly.
To contract or tense muscles, or to make a body part firm.
Used for tightening muscles, especially the stomach or buttocks. Often in fitness contexts.
腹筋を締める運動をしています。
I'm doing exercises to tighten my abdominal muscles.
To tense or tighten muscles. More physiological term.
肩の筋肉を緊張させないでください。
Don't tighten your shoulder muscles.
To grasp something more firmly.
To grip tightly, clench. Often used for hands or objects.
彼は拳を握り締めた。
He tightened his fist.
To hold firmly. A more general phrase.
ロープをしっかり握ってください。
Please tighten your grip on the rope.
締める is the general verb for tightening (screws, lids, belts). 引き締める implies pulling to tighten, and is often used for strings, ropes, or abstract things like discipline and finances.
The loanword タイト (tight) is used for clothing fit or schedules, but not for the action of tightening. Use 締める or other verbs instead.
財政を引き締める必要がある。
We need to tighten our finances.
To put strength into a body part, effectively tightening it. Common in everyday speech.
お腹に力を入れてください。
Tighten your stomach.