Containing directions; instructing; directorial.
A structured listing of the names and characteristics of the files on a storage device.
A list of names, addresses etc, of specific classes of people or organizations, often in alphabetical order or in some classification.
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.
A device described in Napier's treatise Rabdologiæ, consisting of a large set of strips used to multiply multi-digit numbers more easily than Napier’s bones.