tighten

US /ˈtaɪ.tən/
UK /ˈtaɪ.tən/
"tighten" picture
1.

make or become tight or tighter

:
Please tighten the screws on this chair.
The rope began to tighten around his wrist.
2.

make or become more strict or severe

:
The government decided to tighten border controls.
The company needs to tighten its financial policies.