What does 案件 mean?
案件 is a Japanese noun meaning “matter (to discuss); item (on the agenda); issue; topic” in English. It can also be translated as “project, advertisement” depending on context. It is written as 案件 in kanji, あんけん in hiragana, and anken in romaji. This word is part of JLPT N1 vocabulary.
Example sentence
この案件をどう処理するか、彼に下駄を預けるよ。
I'm just going to leave it up to him to figure out how to clean up this mess.