 |
| collision warning: 41 phrases in 13 subjects |
| Automobiles | 4 |
| Aviation | 8 |
| Communications | 1 |
| Electronics | 3 |
| Fish farming pisciculture | 1 |
| High frequency electronics | 1 |
| Makarov | 2 |
| Maritime law & Law of the Sea | 1 |
| Military | 5 |
| Nautical | 1 |
| Security systems | 1 |
| Technology | 9 |
| Transport | 4 |