 |
| high: 99 phrases in 18 subjects |
| Abbreviation | 74 |
| Aviation | 1 |
| Education | 1 |
| Electronics | 1 |
| Energy industry | 1 |
| Information technology | 1 |
| Law | 1 |
| Mass media | 1 |
| Military | 4 |
| NASA | 2 |
| Oil and gas technology | 1 |
| Photography | 1 |
| Quantum mechanics | 2 |
| Rail transport | 2 |
| Sports | 1 |
| Telecommunications | 1 |
| Trademark | 1 |
| United States | 3 |