A formal term for a matter or case that requires attention, often used in legal, administrative, or official contexts. Can refer to a problem, a court case, or an issue under consideration.
この事案は裁判所に持ち込まれた。
This case was brought before the court.
A suspicious case occurred late at night.
委員会はその事案について議論した。
The committee discussed the matter.
The police handled this case quickly.
The committee is carefully deliberating on this matter.
A case involving an information leak was reported.
案件 is used mainly in business or project contexts for a 'matter' or 'proposal', while 事案 leans more toward legal or administrative issues.
問題 is a general, everyday word for a 'problem' or 'issue', whereas 事案 is a specialized, formal term used in official or legal reports.
Compound of 事 (thing, matter) and 案 (plan, proposal, concern). The combination conveys a matter that is under consideration or needs to be dealt with.