Here are some other possible translations depending on the context:
* Pagpapangkat - This is used when you are grouping things together based on similarities.
* Pag-aayos - This is used when you are arranging things in a specific order or system.
* Pagpapangkat-pangkat - This is a more informal way of saying "classification" and literally means "grouping into groups".
The best translation will depend on the specific context in which you are using the word.