| English thesaurus | |||
| |||
| DSP | |||
|
Departure : 166 phrases in 20 subjects |
| Airports and air traffic control | 3 |
| American usage, not spelling | 4 |
| Astronautics | 6 |
| Aviation | 39 |
| Business style | 1 |
| Diplomacy | 11 |
| Economics | 13 |
| Electronics | 2 |
| Finances | 5 |
| General | 18 |
| ICAO | 1 |
| Informal | 1 |
| Information technology | 1 |
| Law | 9 |
| Military | 37 |
| Nautical | 1 |
| Oil and gas | 4 |
| Procurement | 1 |
| Transport | 8 |
| United States | 1 |