classification
nounUK /ˌklæsɪfɪˈkeɪʃn/
US /ˌklæsəfəˈkeɪʃn/
Classification is putting things into groups that are alike.
The classification of animals helps scientists study them.
OTHER MEANINGS
2. The act of deciding which group something belongs to.
The classification of the new plant took several weeks.
3. A group or class into which things are placed.
This book belongs in the mystery classification.
4. The process of keeping official information secret from the public.
The documents were marked for classification by the government.