| Acronym | Meaning |
 | OHC | OverHead-Cam Engine |
| IGS | International Ground Station |
| HALO | High Altitude Low Opening (parachute Jump) |
| SBCT | Stryker Brigade Combat Team |
| SWAN | System For Wearable Audio Navigation |
| C3I OR C?I | Command |
| NAS | National Academy Of Sciences - National Air Space - National Audubon Society - Naval Air Station - New Attack Submarine |
| PDL | Pure Dumb Luck (Texan Punk Band) |
| BDSM | Bondage And Discipline |
| NGIC | National Ground Intelligence Center (Injick) |
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