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bulletproof : 43 phrases in 20 subjects |
| American usage, not spelling | 1 |
| Armored vehicles | 7 |
| Automated equipment | 1 |
| Automobiles | 1 |
| Aviation | 2 |
| Construction | 1 |
| Data processing | 1 |
| General | 4 |
| Internet | 2 |
| Military | 8 |
| Nanotechnology | 1 |
| Nautical | 1 |
| Obsolete / dated | 1 |
| Programming | 1 |
| Rhetoric | 1 |
| Security systems | 3 |
| Slang | 1 |
| Technology | 2 |
| Transport | 1 |
| Weapons and gunsmithing | 3 |