tighten
🇺🇸
/ˈtaɪtn/
🇬🇧
/ˈtaɪtn/
to make something more secure or firm
Please tighten the lid so it doesn't leak.
to make rules or control more strict
The company will tighten security measures next month.
to become or make something stretched and firm
The rope will tighten when you pull it.
to become stiff or tense due to pain or emotion
His muscles tighten when he's nervous.