| Acronym | Meaning |
| ZC | Zeptocoulomb |
| LUT | Limited User Test(ing) - Local User Terminal |
| GSM | General Service Medal - Grams Per Square Metre (paper Thickness; Properly G/m?) - Ground Station Module - Groupe Sp?cial Mobile (French |
| PLI | Position Location Information - Private Lands Initiative - Professional Liability Insurance |
| USNG | United States National Grid |
| V&V | Verification & Validation |
| DSD | Defence Studies Department (King's College |
| MI | Mebi |
| DMSO | U.S. Defense Modeling & Simulation Office (dim-so) |
| ITK | In The Know |