To tighten or fasten firmly (e.g., a belt, screw); to constrict or compress physically.
ベルトをもっと締め付けてください。
Please tighten the belt more.
ナットをレンチで締め付ける。
Tighten the nut with a wrench.
靴がきつくて足が締め付けられるようだ。
The shoes are tight and feel like they're squeezing my feet.
To control strictly or to apply pressure; to squeeze (e.g., an economy), oppress, or tighten regulations/enforcement.
銀行の貸し渋りで中小企業の資金繰りが締め付けられている。
Small businesses are being squeezed by banks' reluctance to lend.
当局は安全規制を締め付ける方針を打ち出した。
Authorities announced a policy to tighten safety regulations.
親の締め付けで子どもが反発している。
The child is rebelling against the parents' strict control.