| Acronym | Meaning |
| IS | Iceland (ISO 3166 Digram) - Israel (FIPS 10-4 Country Code) |
| GSM | General Service Medal - Grams Per Square Metre (paper Thickness; Properly G/m?) - Ground Station Module - Groupe Sp?cial Mobile (French |
| NITFS | National Imagery Transmission Format Standard |
| NLD | Netherlands (ISO 3166 Trigram) |
| SAG | Sango Language (ISO 639-2 Code) |
| AMSO | U.S. Army Model And Simulation Office |
| AASPEM | Advanced Air-to-air System Performance Evaluation Model |
| WRS | Worldwide Reference System |
| HS | Hassium |
| HRV | Croatian Language (ISO 639-2 Code) |