also: カテゴリ · カテゴリィ
A general classification or grouping, used in everyday and technical contexts.
from German Kategorie
この商品はどのカテゴリーに入りますか?
Which category does this product fall into?
I organized the blog posts by category.
The products are displayed sorted by category.
Which category does this book fall into?
That issue is included in this category.