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to threaten; to menace; to frighten (into doing)
暗い声で電話をかけて相手を嚇した。
He frightened the other person by calling in a menacing voice.
弟を嚇すつもりが逆に自分が驚いてしまった。
I intended to scare my younger brother but ended up startling myself instead.
債権者が債務者を嚇して返済を迫った。
The creditor threatened the debtor and pressed for repayment.