a book containing an alphabetical index of the names and addresses of persons in a city, district, organization, etc., or of a particular category of people.
2.
a board or tablet on a wall of a building listing the room and floor numbers of the occupants.
3.
a book of directions.
4.
Computers.
a.
a list of files contained in external storage.
b.
a description of characteristics of a particular file, as the layout of fields within each record.
5.
the Directory, French History. the body of five directors forming the executive power of France from 1795 to 1799.
–adjective
6.
serving to direct; directing; directive.
[Origin: 1400–50; late ME < ML dīréctōrium, n. use of LL dīréctōriusdirectorial; in def. 5, trans. of F Directoire < ML, as above]
A book containing an alphabetical or classified listing of names, addresses, and other data, such as telephone numbers, of specific persons, groups, or firms.
Computer Science
A listing of the files contained in a storage device, such as a magnetic disk.
A description of the various characteristics of a file, such as the layout of the fields in it.
Di*rect"o*ry\, n.; pl. Directories. 1. A collection or body of directions, rules, or ordinances; esp., a book of directions for the conduct of worship; as, the Directory used by the nonconformists instead of the Prayer Book. 2. A book containing the names and residences of the inhabitants of any place, or of classes of them; an address book; as, a business directory. 3. [Cf. F. directoire.] A body of directors; board of management; especially, a committee which held executive power in France under the first republic. 4. Direction; guide. [R.] --Whitlock.
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Audio Help [di-rek-tuh-ree, -tree, dahy-] Pronunciation Key noun, plural -ries, adjective 
