| Acronym | Meaning |
| SERE | Survival |
| UAR | Uniformly At Random (probability) - United Arab Republic - Uni›n Argentina De Rugby (Spanish For Argentine Rugby Union) |
| SE | Northern Sami Language (ISO 639-1 Code) |
| ECM | Electronic Counter-Measures - Enterprise Content Management |
| C/O | Care Of (postal Code Indicating Temporary Address Change) |
| NPC | National Postgraduate Committee - National Provincial Championship (New Zealand Rugby Competition) - Navigation Planning Chart - Non-Player Character (role-playing Games) |
| HE | High Explosive |
| GUF | French Guiana (ISO 3166 Trigram) |
| WAAF | Women's Auxiliary Air Force (WWII UK) |
| ANC | African National Congress |