Definition of "directory"

A list of names, addresses etc, of specific classes of people or organizations, often in alphabetical order or in some classification.  examples

(computing) A structured listing of the names and characteristics of the files on a storage device.  examples

(computing) A virtual container in a computer's file system, in which files and other directories may be stored. The files and subdirectories in a directory are usually related.  examples

Containing directions; instructing; directorial.  examples