classified

(noun) a short ad in a newspaper or magazine (usually in small print) and appearing along with other ads of the same type. Synonyms: classified ad, classified advertisement.

(verb) arrange or order by classes or categories. Synonyms: classify, class, sort, assort, sort out, separate. Example: "How would you classify these pottery shards--are they prehistoric?."

(verb) declare unavailable, as for security reasons. Synonyms: classify. Example: "Classify these documents."

(verb) assign to a class or kind. Synonyms: relegate, classify. Examples: "How should algae be classified?." "People argue about how to relegate certain mushrooms."

(adj) arranged into classes. Synonyms: classified (vs. unclassified).

(adj) official classification of information or documents; withheld from general circulation. Synonyms: classified (vs. unclassified). Example: "Thousands of classified documents have now been declassified."