| English thesaurus | |||
| |||
| STD | |||
| STD (EIA-232) | |||
|
Secondary : 314 phrases in 22 subjects |
| Airports and air traffic control | 2 |
| Aviation | 10 |
| Chemistry | 41 |
| Computers | 1 |
| Construction | 8 |
| Customs | 1 |
| Economics | 19 |
| Electronics | 1 |
| General | 1 |
| Law | 109 |
| Mechanic engineering | 2 |
| Microsoft | 2 |
| Non-governmental organizations | 4 |
| Oil / petroleum | 61 |
| Optics branch of physics | 15 |
| Photography | 12 |
| Polygraphy | 7 |
| Religion | 1 |
| Road traffic | 4 |
| Surveying | 1 |
| Technology | 11 |
| Television | 1 |