| Acronym | Meaning |
| HALT | Hungry Angry Lonely Tired |
| ZOPFAN | Zone Of Peace |
| MACHO | MAssive Compact Halo Object |
| IN | India (FIPS 10-4 Country Code; ISO 3166 Digram) - Indiana (postal Symbol) - Infantry |
| TM | Technical Manual - Theatre Missile - Thematic Mapper -trademark (often Written In Small Superscript Type: TM Or ?) -Turing Machine -Turkmenistan (ISO 3166 Digram) |
| BUL | Bulgarian Language (ISO 639-2 Code) |
| USDA | United States Department Of Agriculture |
| IUCN | International Union For The Conservation Of Nature And Natural Resources (World Conservation Union) |
| IVI | Interchangeable Virtual Instrument |
| LAD | Laser Aiming Device |