一いっ件けん落らく着ちゃくいっけんらくちゃくじ字FuriganaMeanings1nouncase closed; issue settledyojijukugo (four-character idiom)›Used when a matter, problem, or case is finally resolved. Often carries a sense of relief or closure. Common in both formal and casual contexts.長ながかった裁さい判ばんも、これで一いっ件けん落
