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English definition of “classified”

classified

adjective     /ˈklæsɪfaɪd/
classified documents and information are officially kept secret and can only be seen by people who have high authority or special permission: Security employees discovered that classified information and passwords had been leaked onto the internet. classified evidence/material/records He was caught taking highly classified documents from the National Archives.
[before noun] relating to the small advertisements in newspapers, magazines, or on websites that offer jobs or to sell or buy things: The help-wanted classified sections are overflowing with ads for managers.
used to describe information that is arranged by type: Classified data will increase 50% a year as more economies begin using broadband technology. The classified catalogue tells you which publications on a particular subject are available in the library.
(Definition of classified adjective from the Cambridge Business English Dictionary © Cambridge University Press)
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