Sort, category (4)
I believe the answer is:
type
I believe this is a double definition.
'sort' is the first definition.
(I know that type is a type of sort)
'category' is the second definition.
(I know that type is a type of form)
(Other definitions for type that I've seen before include "The face" , "Use a keyboard; sort" , "Use keys" , "Write using a keyboard" , "Sort - pattern - print" .)