tighten
🇺🇸
/ˈtaɪtn/
🇬🇧
/ˈtaɪtn/
to make something more secure or firm
Please tighten the lid so it doesn't leak.
漏れないように蓋をしっかり締めてください。
to make rules or control more strict
The company will tighten security measures next month.
来月、会社はセキュリティ対策を強化します。
to become or make something stretched and firm
The rope will tighten when you pull it.
引っ張るとロープが締まります。
to become stiff or tense due to pain or emotion
His muscles tighten when he's nervous.
緊張すると彼の筋肉が硬直します。