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to narrow; to reduce; to contract
工事で道幅が狭められていた。
The road width had been narrowed by construction.
視野を狭めると大局が見えなくなる。
Narrowing your perspective makes it hard to see the big picture.
警察が包囲網を狭めて犯人を追い詰めた。
The police tightened the cordon and cornered the suspect.