agent

代理人、エージェント

他の人や組織に代わって行動し、仕事の手配や判断などをする人。

やさしい英語で： Someone who acts for another person or organization, often arranging business or making decisions.

• Call your travel agent.
• His agent arranged the film contract.
• The insurance agents answered our questions.

使い方： agent for someone/something (She works as an agent for several musicians.)

類義語： representative

よく使う表現： estate agent, travel agent, agent for someone

作用因子、薬剤

変化を起こしたり、効果を生じさせたりする物質や力。

やさしい英語で： A substance or force that causes a change or produces an effect.

• Soap is a cleaning agent.
• The laboratory identified the infectious agent.
• Wind acts as an agent of erosion.

類義語： cause

よく使う表現： cleaning agent, infectious agent, agent of change

行為者

行動し、物事に影響を与える選択ができる人や存在。

やさしい英語で： A person or being able to act and make choices that affect things.

• A moral agent can make choices.
• The theory treats each person as an independent agent.
• Are animals responsible agents in the same way humans are?

類義語： actor

よく使う表現： moral agent, rational agent, free agent