undercover

潜入の、秘密の

情報収集や犯罪者の逮捕のため、しばしば偽の身分で秘密に活動する。

やさしい英語で： Working or done secretly, often with a false identity, to discover information or catch criminals.

• An undercover officer joined the group.
• The police launched an undercover operation.
• She went undercover to investigate illegal sales.

類義語： covert, secret

反対語： overt

よく使う表現： undercover officer, undercover operation, go undercover, undercover investigation

潜入の、秘密任務の

別人のふりをして、秘密に情報を集める。

やさしい英語で： Secretly gathering information while pretending to be someone else.

• The undercover agent used a false name.
• They sent an undercover spy into the organization.
• His undercover work revealed the enemy’s plans.

類義語： covert

よく使う表現： undercover agent, undercover mission, undercover work