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

Related Words

Compare: 事件(じけん) (incident, case)

Compare: 案件(あんけん) (matter, case)

Compare: 問題(もんだい) (problem, issue)

general

Added 2026.4.7 23:17 · Revised 2026.9.2 13:02

22500/22752_jian