The following categories exist on the wiki, and may or may not be unused.Also seewanted categories.

• 1-syllable words (20 members)
• 12-syllable words (8 members)
• 14-syllable words (1 member)
• 15-syllable words (1 member)
• 19-syllable words (1 member)
• 2-syllable words (1,969 members)
• 3-syllable words (1,481 members)
• 4-syllable words (611 members)
• 5-syllable words (168 members)
• 6-syllable words (29 members)
• 7-syllable words (2 members)
• 8-syllable words (5 members)
• AVL (494 members)
• AWL (616 members)
• Abbreviations (116 members)
• Abbreviations, acronyms and initialisms (4 members)
• Acceleration (6 members)
• Acronyms (12 members)
• Acting (5 members)
• Actinide series chemical elements (10 members)
• Adjectives (6,128 members)
• Adjectives by suffix (2 members)
• Adjectives suffixed with -en (3 members)
• Adjectives suffixed with -ly (40 members)
• Administrative divisions (6 members)
• Adverbs (844 members)
• Adverbs by suffix (1 member)
• Adverbs suffixed with -ly (539 members)
• Aeronautics (4 members)
• Afghanistan (3 members)
• Africa (8 members)
• Afterlife (6 members)
• Age (16 members)
• Agriculture (19 members)
• Air (7 members)
• Aircraft (7 members)
• Alaska (3 members)
• Albania (3 members)
• Alchemy (12 members)
• Alcoholic drinks (23 members)
• Algeria (3 members)
• Alkali metals (6 members)
• Alkaline earth metals (6 members)
• Alphabets (3 members)
• America (5 members)
• Amphibians (5 members)
• Amputation (3 members)
• Anatomy (108 members)
• Ancient Egypt (5 members)
• Ancient Europe (3 members)