(a)[Tn] arrange (sth) systematically in classes or groups 将（某事物）编排, 分类: The books in the library are classified by/according to subject. 图书馆的书是按照[根据]科目分类的. (b) [Tn, Cn.n/a] ~ sb/sth (as sth) place sb/sth in a particular class(3) 将某人[某事物]归类: Would you classify her novels as serious literature or as mere entertainment? 你认为她的小说属於文学类呢, 还是属於通俗读物类? 
[Tn] declare (information, documents, etc) to be officially secret and available only to certain people 将（资料﹑ 文件等）定为官方密件而仅供某些人使用.> classifiable / 5klAsIfaIEbl; `klAsE9faIEbl/ adj that can be classified 可分类的.
classified adj [usu attrib 通常作定语]
1 arranged in groups 分类的: a classified directory, ie one in which the names of firms, etc are entered under labelled headings, eg builders, electricians, plumbers 分类电话簿.
2 declared officially secret (by a government) and available only to certain people （由政府）定为机密而仅供某些人使用的: classified information, documents 机密情报﹑ 文件.
# ,classified ad`vertisements (also ,classified `ads / dz; Adz/, esp US `want ads) small advertisements placed in a newspaper, etc by people wishing to buy or sell sth, employ sb, find a job, etc 分类广告.