| Acronym | Meaning |
| THAAD | Theatre High Altitude Area Defence |
| NR | Southern Ndebele Language (ISO 639-1 Code) |
| ADI | Acceptable/Allowable Daily Intake |
| RCRA | Resource Conservation And Recovery Act (reck-ra Or Rick-ra) |
| CIS | Canadian Interuniversity Sport - Commonwealth Of Independent States - Command And Information System - Communication And Information System |
| CHA | Chamorro Language (ISO 639-2 Code) |
| NAI | Named Area Of Interest -Network Access Identifier |
| BLCSE | Battle Laboratory Constructive Simulation Environment |
| AFROTC | Air Force Reserve Office Training Corps |
| ZL | Zeptolitre |