Whatever you want it to mean 

CLASSIFIED meaning from OXFORD;

adjective

1. 1. arranged in classes or categories. "a classified catalogue of books"
2. 2. (of information or documents) designated as officially secret and accessible only to authorized people. "classified information on nuclear experiments"

noun

1. small advertisements placed in a newspaper and organized into categories

IMA NOT A NERD BTW, just, your friendly neighbourhood Mr.StiK