a folding cover or holder, typically made of stiff paper or card, for storing loose papers (尤指硬纸或纸板制的)文件夹,纸夹 ■an icon on a computer screen which can be used to access a directory containing related files or documents (计算机)文件夹图标 ■(N. Amer.)a folded leaflet or a booklet made of folded sheets of paper (北美)折叠式传单(或小册子)