clas ‧ si ‧ fi ‧ ca ‧ tion /ˌklæsəfəˈkeɪʃ ə n, ˌklæsɪfəˈkeɪʃ ə n/ BrE AmE noun
[uncountable and countable] a process in which you put something into the group or class it belongs to ⇨ classify :
the classification of wines according to quality
There are five job classifications.