Definition from Wiktionary, the free dictionary
This category contains only other categories, no dictionary entries. Its subcategories are on the topic: Paper sizes. They are of two sorts:
- Subcategories named like "aa:Paper sizes (with a prefixed language code) are categories of terms in specific languages. For example, "fr:Paper sizes is the Paper sizes-related category of French terms. You may be interested especially in Category:en:Paper sizes, for English terms.
- Subcategories of this one named without the prefixed language code are further categories just like this one, but devoted to topics finer than Paper sizes.