1. 1〔防御する〕defend ((one's country against the enemy));〔防護する〕protect ((against, from))
    • 泥棒を防ぐために戸締りを厳重にする
    • fasten the doors securely to protect the house against [from] burglars
    • 風雨を防ぐものは何もなかった
    • There was nothing to protect [shield] them from the wind and rain.
  1. 2〔防止する〕keep away [out, off], check;〔予防する〕prevent ((a thing [a person] from doing))
    • はえを防ぐ
    • keep flies away
    • すきま風を防ぐ
    • keep out the draft
    • 川の氾濫はんらんを防ぐ
    • keep the river from overflowing
    • 横揺れを防ぐ
    • check rolling
    • 青少年の非行を未然に防ぐ
    • prevent juvenile delinquency
    • この薬は吐き気を防いでくれる
    • This medicine prevents vomiting.
    • 塩と砂糖は食品の腐敗を防ぐ
    • Salt and sugar preserve food (from decay).
    • ミスを防ぐようにしなさい
    • Be careful not to make any mistakes.
    • 誤解を防ぐ
    • avoid misunderstandings