 |
| English thesaurus | |||
| |||
| ACC | |||
| Air Center: 341 phrases in 13 subjects |
| Air defense | 14 |
| Automobiles | 10 |
| Aviation | 149 |
| Earth sciences | 8 |
| Ecology | 2 |
| Electronics | 29 |
| Environment | 4 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 64 |
| Space | 17 |
| Technology | 7 |
| United Kingdom | 2 |
| United States | 34 |