A "folder" is a digital or physical container used to organize and store files or documents. In computing, folders help users manage their data by grouping related items together, making it easier to locate and access them. They can hold various types of files, such as text documents, images, and spreadsheets. In a physical context, a folder often refers to a flat, foldable cover made of paper or plastic that holds loose sheets of paper. These folders are commonly used in offices and schools to keep documents organized and protected. Both types of folders serve the purpose of enhancing organization and efficiency.