 |
| light-signal: 114 phrases in 24 subjects |
| Armored vehicles | 1 |
| Automobiles | 12 |
| Aviation | 1 |
| Aviation medicine | 3 |
| Computers | 2 |
| Construction | 6 |
| Electronics | 9 |
| General | 1 |
| Machine tools | 1 |
| Makarov | 3 |
| Mass media | 2 |
| Mechanics | 1 |
| Military | 15 |
| Nautical | 3 |
| Occupational health & safety | 2 |
| Oceanography & oceanology | 1 |
| Public utilities | 1 |
| Rail transport | 14 |
| Road works | 1 |
| Security systems | 1 |
| Technology | 26 |
| Telecommunications | 4 |
| Transport | 2 |
| Uncommon / rare | 2 |