folders

noun

1. 1

   An organizer that papers are kept in, usually with an index tab, to be stored as a single unit in a filing cabinet.

   “I keep all my schoolwork in a yellow folder.”

2. 2

   A virtual container in a computer's file system, in which files and other folders may be stored. The files and subfolders in a folder are usually related.

   “My essays are in the folder named "Essays".”

3. 3

   A machine or person that folds things.

4. 4

   A folding knife.