1arranged in classes or categories:a classified catalogue of books
[attributive] (of newspaper or magazine advertisements) organized in categories according to what is being advertised:classified advertisementsthe classified columns of the newspaper
British (of a road) assigned to a category according to its importance within the overall system of road numbering.
2(of information or documents) designated as officially secret and accessible only to authorized people:classified information on nuclear experiments
noun
(classifieds)
small advertisements placed in a newspaper and organized in categories.
classified in other Oxford dictionaries
Definition of classified in the US English dictionary
