classify
verbUK /ˈklæsɪfaɪ/
US /ˈklæsəfaɪ/
To put things into groups that are alike.
We classify animals by what they eat and where they live.
OTHER MEANINGS
2. To decide which group something belongs to.
Scientists classify this plant as a flower, not a tree.
3. To mark information as secret or private.
The government classified the report so only a few people could read it.
4. To arrange things in a neat order.
She classified her books by color and size.