This category contains only other categories, no dictionary entries. Its subcategories are on the topic: Four. They are of two sorts:
- Subcategories named like "aa:Four (with a prefixed language code) are categories of terms in specific languages. You may be interested especially in Category:en:Four, for English terms.
- Subcategories of this one named without the prefixed language code are further categories just like this one, but devoted to finer topics.
This category has the following 105 subcategories, out of 105 total.