The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
(first | last) View (previous 50 | next 50) (20 | 50 | 100 | 250 | 500)- Actors (8 members)
- Adventures (2 members)
- Aiken Drum (2 members)
- Airports (11 members)
- Algebra (5 members)
- Allies (32 members)
- Animal House (63 members)
- Animal Songs (67 members)
- Animal Villains (9 members)
- Animals (257 members)
- Antagonists (23 members)
- Anthropomophic Creatures (18 members)
- Ants (1 member)
- Apple II (1 member)
- Arrivals (3 members)
- Article management templates (13 members)
- Article stubs (17 members)
- Articles with Photos (32 members)
- Articles with Videos (10 members)
- Articles without Photos (28 members)
- Attractions (96 members)
- Baby Animals (48 members)
- Bad Guys (2 members)
- Bands (66 members)
- Barney (1 member)
- Bears (53 members)
- Best of Milli (8 members)
- Beverages (1 member)
- Big Bird (19 members)
- Birds (89 members)
- Birthday Episodes (5 members)
- Blog posts (24 members)
- Boats (15 members)
- Books (9 members)
- Boys (54 members)
- Browse (8 members)
- Bugs (7 members)
- Buildings (56 members)
- Cakes (1 member)
- Candidates for deletion (2 members)
- Candies (1 member)
- Candy (1 member)
- Carnival (8 members)
- Carnivals (8 members)
- Cars (128 members)
- Categories (16 members)
- Category templates (13 members)
- Cats (19 members)
- Celebration Songs (1 member)
- Celebrations (1 member)