| Acronym | Meaning |
| MER | Mars Exploration Rover |
| SSDC | U.S. Space And Strategic Defense Command |
| SD | Sindhi Language (ISO 639-1 Code) |
| CTS | Clear-To-Send - Collective Training Standards - Communications Technology Service - Contract Technical Services - Conversation Time Sharing - COSMIC Top Secret |
| IND | India (ISO 3166 Trigram) |
| JZ | Joint Zone |
| MEDEVAC | Medical Evacuation |
| DIP | Dual In-line Package (electronics) |
| HEB | Hebrew Language (ISO 639-2 Code) |
| AFSPC | Air Force Space Command |