[ klas-uh-fahyd ]
/ ˈklæs əˌfaɪd /


arranged or distributed in classes or according to class: We plan to review all the classified specimens in the laboratory.
of or designating the part or parts of a publication that contain advertisements or lists arranged by category: Look under “plumbers” in the classified pages of the telephone book. He found a job for a “typist” in the classified section of the newspaper.
(of information, a document, etc.)
  1. bearing the designation classified.
  2. available only to authorized persons.Compare classification(def 5).
confidential or secret: The firm's promotional budget for next year is classified information.
identified as belonging to a specific group or category, as one to which benefits or restrictions apply: Classified buildings are eligible for state-funded restoration. The bank has a list of classified customers to whom it will not make large loans.


Origin of classified

1885–90; 1940–45 for def 3; classify + -ed2


non·clas·si·fied, adjectivesu·per·clas·si·fied, adjectivewell-clas·si·fied, adjective

Definition for classified (2 of 2)

[ klas-uh-fahy ]
/ ˈklæs əˌfaɪ /

verb (used with object), clas·si·fied, clas·si·fy·ing.

to arrange or organize by classes; order according to class.
to assign a classification to (information, a document, etc.).Compare classification(def 5).
to limit the availability of (information, a document, etc.) to authorized persons.

Origin of classify

1790–1800; < Latin classi(s) class + -fy

OTHER WORDS FROM classify Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for classified

British Dictionary definitions for classified (1 of 2)

/ (ˈklæsɪˌfaɪd) /


arranged according to some system of classification
government (of information) not available to people outside a restricted group, esp for reasons of national security
(of information) closely concealed or secret
(of advertisements in newspapers, etc) arranged according to type
British (of newspapers) containing sports results, esp football results
(of British roads) having a number in the national road system. If the number is preceded by an M the road is a motorway, if by an A it is a first-class road, and if by a B it is a secondary road

British Dictionary definitions for classified (2 of 2)

/ (ˈklæsɪˌfaɪ) /

verb -fies, -fying or -fied (tr)

to arrange or order by classes; categorize
government to declare (information, documents, etc) of possible aid to an enemy and therefore not available to people outside a restricted group

Derived forms of classify

classifiable, adjectiveclassifier, noun

Word Origin for classify

C18: back formation from classification
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012