Classification -

1.[u]分类；归类；分级the act or process of putting people or things into a group or class (= of classifying them)

1.【动,植】分类(法)

2.选别;分等,分级;分选

3.类别;等级;(文件的)保密级

1.a group into which someone or something is put because of the features that they have

2.the process of putting people or things into particular groups according to the features that they have