| English thesaurus | |||
| |||
| TCAS | |||
|
Terrain : 178 phrases in 16 subjects |
| American usage, not spelling | 2 |
| Astronautics | 1 |
| Automobiles | 3 |
| Aviation | 27 |
| Communications | 1 |
| Construction | 1 |
| Diplomacy | 1 |
| Ecology | 1 |
| Electronics | 1 |
| General | 7 |
| Hydroelectric power stations | 1 |
| Meteorology | 2 |
| Military | 126 |
| Radiolocation | 1 |
| Road construction | 1 |
| Technology | 2 |