事案(じあん)

じあん
noun
case; matter; incident
1. case; matter; incident; affair
A matter or incident that requires attention or is under consideration, especially in legal, administrative, or official contexts.
この事案(じあん)について調査(ちょうさ)する。
We will investigate this case.
個人情報(こじんじょうほう)漏洩(ろうえい)の事案(じあん)が発生(はっせい)した。
A personal data breach incident occurred.
過去(かこ)の類似(るいじ)事案(じあん)を参考(さんこう)にして対応(たいおう)を決(き)める。
We will decide on our response by referring to similar past cases.

A formal word for 'case' or 'matter,' commonly used in legal, government, business, and news contexts. It often implies a problem, incident, or issue that needs to be addressed. In recent years, it has also spread into informal internet slang — for example, 事案(じあん) is sometimes used humorously online to describe minor everyday incidents as if they were serious official cases.

COMMON COLLOCATIONS:

  • 事案(じあん)が発生(はっせい)する: an incident occurs
  • 重大(じゅうだい)事案(じあん): serious matter/case
  • 不祥事(ふしょうじ)事案(じあん): misconduct case
  • 類似(るいじ)事案(じあん): similar case
  • 個別(こべつ)事案(じあん): individual case

SIMILAR WORDS:

  • 事件(じけん): incident, case — broader and more commonly used; often implies criminal activity
  • 案件(あんけん): matter, case — very similar; more often used for projects or tasks under consideration
  • 問題(もんだい): problem, issue — more general, less formal
general
Added 2026.4.7 23:17
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