Subcategories:
You can see the full category hierarchy on the Category Map.
| 
 | 
 | 
| 2 beginning with F | FIFTEEN (2) FIVE | 
| 3 beginning with N | NINE NINETEEN NUMBERS (3) | 
| 8 beginning with O | ONE ONE + ONE = TWO ONE (2) ONE (3) ONE (4) ONE (5) ONE (6) ONE (7) | 
| 3 beginning with P | PI PI (2) PI (3) | 
| 4 beginning with T | TENS (2) TENS TEN TWOS | 
| 1 beginning with U | UMPTEEN | 
| 6 beginning with XYZ | ZILCH ZIP ZIP (2) ZIP (4) ZIP (5) ZIP (6) | 
| 27 apronyms in total | |