1. I〔投げる〕throw; cast
    • 彼女は海に身を投じた
    • She threw herself in the sea.(▼死んだ場合はdrowned herselfとも言う)
    • 獄に投じられた
    • He was thrown into prison.
    • 筆を投じる
    • stop [give up] writing
    • 夕日が海に燃えるような光を投じた
    • The setting sun cast a fiery glow over the sea.
  1. II
  1. 1〔仲間に入る〕
    • 彼女は女性解放運動に身を投じた
    • She 「threw herself into [plunged into/devoted herself to] the women's liberation movement.
    • 少年は革命グループに身を投じた
    • The boy joined a revolutionary group.
  1. 2〔つぎ込む〕
    • 彼女は私財を投じて学校を建てた
    • She sank her own money into founding a school./She built a school at her own expense.
    • 父は全財産をその事業に投じた
    • My father invested [put] all his fortune in the project.
    • トンネル建設のために投じられた労力ははかりしれない
    • The work that has gone into (building) the tunnel is immeasurable.
  1. 3〔うまく合う,一致する〕
    • 時流に投じる
    • swim with the stream [current/tide]
    • その標語はうまく人気に投じた
    • The slogan succeeded in capturing the public fancy./The slogan caught on.
    • 政府は機に投じた策を立てるべきだ
    • The government should find a way to take advantage of this opportunity.
  1. 4〔投票する〕
    • 清き一票を投じる
    • cast a clean vote
    • 彼に1票を投じた
    • I voted for him.
  1. 5〔投降する〕
    • 敵に投じる
    • surrender to the enemy
  1. 6〔泊まる〕
    • 一夜を湖畔の宿に投じた
    • I put up at a lakeside hotel for the night.