payback

仕返し、報復

以前自分を傷つけたり負かしたりした相手に、やり返すこと。

やさしい英語で： Something you do to hurt or defeat someone because they hurt or defeated you earlier.

• This is payback for your cruel joke.
• Beating our rivals felt like payback.
• He wanted payback for the way they had treated him.

使い方： payback for something (The prank was payback for his earlier insult.)

類義語： revenge, retaliation

よく使う表現： get payback, payback for something, time for payback

投資回収

投資で得た収入によって、最初に使った金額を取り戻すこと。

やさしい英語で： Money earned from an investment that covers the amount originally spent.

• The project achieved payback after three years.
• Lower energy costs shortened the payback period.
• We calculated the payback on the new equipment.

使い方： payback on something (Payback on the equipment took two years.)

類義語： cost recovery

よく使う表現： payback period, investment payback, achieve payback