| Class Name | Class Description |
| Automotive and Transportation | This class of TLAs covers those related to cars and any form of transportation, such as civilian aviation, bus and train travel, or boats. |
| Computers | TLAs relating to computer hardware and software jargon, programming, and the Internet. |
| Education | These are TLAs from scholastic, research, and teaching jargon. |
| Finance and Business | Business and financial TLAs. Stock market terms, accounting, business, and other money-related jargon. |
| Food and Cuisine | Recipes, cooking terms, and other food- and drink-related TLAs. |
| Government and Law | TLAs from government and legal related jargon. |
| Industry and Manufacturing | TLAs related to industry, manufacturing, construction, and materials used therein. |
| Medicine | Medical, health, hygiene, and disease-related TLAs. |
| Military | Military-industrial complex TLAs. |
| Miscellaneous | TLAs that otherwise defy classification. |
| Science and Technology | TLAs from space exploration, chemistry, electronics, power generation. |
| Society | Slang, religious terms, musical terms, and other common use TLAs. |
| Sport | TLAs from organized sports and athletic competition. |