折おり鞄かばんおりかばんMeanings1nounbriefcase; portfolioA flat, folding case for carrying documents, often used in business settings.会かい議ぎのために折おり鞄かばんに書しょ類るいを入いれた。I put the documents in my briefcase for the meeting.彼かれはいつも黒くろい折おり鞄かばんを持もっている。He always carries a black briefcase.