|
system : 252 phrases in 36 subjects |
| Abbreviation | 114 |
| Accounting | 1 |
| Aeronautics | 2 |
| Artificial intelligence | 2 |
| Automobiles | 1 |
| Aviation | 8 |
| Botany | 1 |
| Business | 7 |
| Cinematography | 1 |
| Computer networks | 2 |
| Computers | 9 |
| Education | 2 |
| Electronics | 1 |
| Humorous / Jocular | 1 |
| Information technology | 23 |
| International transportation | 1 |
| Investment | 1 |
| Mathematics | 1 |
| Medical | 1 |
| Meteorology | 2 |
| Military | 33 |
| NASA | 3 |
| NASDAQ | 1 |
| Nuclear and fusion power | 1 |
| Oceanography & oceanology | 4 |
| Postal service | 1 |
| Programming | 4 |
| Security systems | 1 |
| Software | 2 |
| Sports | 1 |
| Technology | 2 |
| Telecommunications | 7 |
| Trademark | 1 |
| Transport | 6 |
| United States | 3 |
| University | 1 |