密告者(みっこくしゃ)

みっこくしゃ
noun
informer; informant; snitch
society
1. informer; informant; snitch
A person who secretly reports information about someone's activities to authorities or other parties. Often carries a negative connotation of betrayal or treachery.
密告者(みっこくしゃ)は誰(だれ)だ。
Who is the informer?
密告者(みっこくしゃ)のおかげで犯人(はんにん)が捕(つか)まった。
The criminal was caught thanks to the informant.
組織(そしき)の中(なか)に密告者(みっこくしゃ)がいるのではないかと疑(うたが)われていた。
It was suspected that there was an informer within the organization.

密告(みっこく) means 'secret report' or 'tip-off,' and 者(しゃ) means 'person.' A 密告者(みっこくしゃ) is someone who secretly informs on others, whether to police, authorities, or rival groups. The word appears frequently in crime fiction, historical dramas, and discussions of espionage.

Common collocations

Similar words

  • 内通者(ないつうしゃ) — mole, inside informant (emphasizes being an insider who leaks information)
  • 告発者(こくはつしゃ) — whistleblower, accuser (more neutral or positive; someone who exposes wrongdoing)
  • スパイ — spy (broader term; someone who gathers secret information)

Related Words

Compare: 内通者(ないつうしゃ) (mole, inside informant)
Compare: スパイ (spy (broader term)
general
Added 2026.4.1 7:20 · Revised 2026.9.2 13:02
21000/21188_mikkokusha