sorter

noun
UK /ˈsɔːtə/
US /ˈsɔːrtər/

A person or machine that puts things into groups.

The mail sorter put the letters into different boxes.


OTHER MEANINGS

2. A machine that separates things by size or type.

The coin sorter quickly counted all the pennies.

3. A person whose job is to arrange letters or parcels.

He worked as a sorter at the post office.

4. A device in computing that arranges data in order.

The program uses a sorter to list the names alphabetically.