| Acronym | Meaning |
 | XL | EXtra Large -Forty (in Roman Numerals) |
| BTIS | Battlefield Target Identification System |
| DTL | Diode-Transistor Logic (electronics) |
| ASARS | Advanced Synthetic Aperture Radar System - Airborne Search And Rescue System |
| NAVCAMS | Naval Communications Area Master Station |
| BMEWS | Ballistic Missile Early Warning System (bee-mews) |
| HEP | High-Explosive Plastic (ammunition) |
| SHN | Saint Helena (ISO 3166 Trigram) |
| NWO | New World Order (see Article For Explanation Of Idiosyncratic Capitalization) |
| OARSI | Osteoarthritis Research Society International |
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